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Elephantidae (the elephants) is a family of pachyderm, and the only remaining family in the order Proboscidea in the class Mammalia. Elephantidae has three living species: the African Bush Elephant, the African Forest Elephant (until recently known collectively as the African Elephant), and the Asian Elephant (also known as the Indian Elephant). Other species have become extinct since the last ice age, which ended about 10,000 years ago. Download high resolution version (875x583, 105 KB)African Elephant trying to reach leaves, in Kenya. ...
Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms. ...
Phyla Subregnum Parazoa Porifera Subregnum Eumetazoa Placozoa Orthonectida Rhombozoa Radiata (unranked) Ctenophora Cnidaria Bilateria (unranked) Acoelomorpha Myxozoa Superphylum Deuterostomia Chordata Hemichordata Echinodermata Chaetognatha Superphylum Ecdysozoa Kinorhyncha Loricifera Priapulida Nematoda Nematomorpha Onychophora Tardigrada Arthropoda Superphylum Platyzoa Platyhelminthes Gastrotricha Rotifera Acanthocephala Gnathostomulida Micrognathozoa Cycliophora Superphylum Lophotrochozoa Sipuncula Nemertea Phoronida Bryozoa Entoprocta Brachiopoda...
{{{subdivision_ranks}}} See below Chordates (phylum Chordata) are a group of animals that includes the vertebrates, together with several closely related invertebrates. ...
Classes and Clades See below Vertebrates are members of the subphylum Vertebrata (within the phylum Chordata), specifically, those chordates with backbones or spinal columns. ...
Orders Multituberculata (extinct) Palaeoryctoides (extinct) Triconodonta (extinct) Subclass Australosphenida Ausktribosphenida Monotremata Subclass Eutheria (excludes extinct ancestors) Afrosoricida Anagaloidea (extinct) Arctostylopida (extinct) Artiodactyla Carnivora Cetacea Chiroptera Cimolesta (extinct) Cingulata Creodonta (extinct) Condylarthra (extinct) Dermoptera Desmostylia (extinct) Dinocerata (extinct) Embrithopoda (extinct) Hyracoidea Insectivora Lagomorpha Leptictida (extinct) Litopterna (extinct) Macroscelidea Mesonychia (extinct) Notoungulata...
Groups Jozaria (extinct) Anthracobunidae (extinct) Moeritheriidae (extinct) Euproboscidea Numidotheriidae (extinct) Barytheriidae (extinct) Deinotheriidae (extinct) Elephantiformes Phiomiidae (extinct) Palaeomastodontidae (extinct) Hemimastodontidae (extinct) Euelephantoidea Choerolophodontidae (extinct) Amebelodontidae (extinct) Gnathabelodontidae (extinct) Gomphotheriidae (extinct) Elephantidae Mammutidae (extinct) Proboscidea is an order containing only one family of living animals, Elephantidae, the elephants, with three species...
John Edward Gray. ...
In biology, a genus (plural genera) is a taxonomic grouping. ...
In biology, a species is one of the basic units of biodiversity. ...
Species Loxodonta adaurora(extinct) Loxodonta africana Loxodonta cyclotis Loxodonta is a genus in Elephantidae, the family of elephants. ...
Binomial name Loxodonta cyclotis Matschie, 1900 Until recently, it was thought that the so-called Forest Elephant (Loxodonta cyclotis) was simply a subspecies of the African Savannah Elephant (Loxodonta africana). ...
Binomial name Loxodonta africana (Blumenbach, 1797) The African Savannah Elephant (Loxodonta africana) is the best-known and larger of the two African elephants. ...
Species E. maximus E. recki (extinct) The Elephas genus contains only one surviving member, the Asian Elephant Another species, , once lived in Africa, but has since become extinct. ...
Binomial name Elephas maximus Linnaeus, 1758 Asian Elephant range The Asian Elephant (Elephas maximus), sometimes known by the name of its nominate subspecies (the Indian Elephant), is one of the three living species of elephant, and the only living species of the genus Elephas. ...
Binomial name Elephas (Palaeoloxodon) antiquus (Falconer & Cautley, 1847) The Straight-tusked Elephant (Elephas (Palaeoloxodon) antiquus or Palaeoloxodon antiquus) inhabited Middle and Late Pleistocene continental Europe. ...
The Dodo, shown here in illustration, is an often-cited[1] example of extinction. ...
The Dodo, shown here in illustration, is an often-cited[1] example of extinction. ...
The Dodo, shown here in illustration, is an often-cited[1] example of extinction. ...
The Dodo, shown here in illustration, is an often-cited[1] example of extinction. ...
The Dodo, shown here in illustration, is an often-cited[1] example of extinction. ...
Binomial name Elephas falconeri Busk, 1867 Elephas falconeri is an extinct Siculo-Maltese species of elephant closely related to the modern Asian elephant. ...
The Dodo, shown here in illustration, is an often-cited[1] example of extinction. ...
The Dodo, shown here in illustration, is an often-cited[1] example of extinction. ...
The Dodo, shown here in illustration, is an often-cited[1] example of extinction. ...
The Dodo, shown here in illustration, is an often-cited[1] example of extinction. ...
Elephas recki is an enormous, extinct species of elephant. ...
The Dodo, shown here in illustration, is an often-cited[1] example of extinction. ...
Stegodon is a genus of the extinct subfamily Stegodontinae of the order Proboscidea. ...
The Dodo, shown here in illustration, is an often-cited[1] example of extinction. ...
This article is about the extinct mammal. ...
The Dodo, shown here in illustration, is an often-cited[1] example of extinction. ...
In biological classification, family (Latin: familia, plural familiae) is 1) a rank or 2) a taxon in that rank. ...
The Pachydermata (meaning thick skin) is an obsolete order of mammals described by Georges Cuvier and at one time recognised by many systematists. ...
Scientific classification or biological classification refers to how biologists group and categorize extinct and living species of organisms. ...
Groups Jozaria (extinct) Anthracobunidae (extinct) Moeritheriidae (extinct) Euproboscidea Numidotheriidae (extinct) Barytheriidae (extinct) Deinotheriidae (extinct) Elephantiformes Phiomiidae (extinct) Palaeomastodontidae (extinct) Hemimastodontidae (extinct) Euelephantoidea Choerolophodontidae (extinct) Amebelodontidae (extinct) Gnathabelodontidae (extinct) Gomphotheriidae (extinct) Elephantidae Mammutidae (extinct) Proboscidea is an order containing only one family of living animals, Elephantidae, the elephants, with three species...
Scientific classification or biological classification refers to how biologists group and categorize extinct and living species of organisms. ...
Orders Multituberculata (extinct) Palaeoryctoides (extinct) Triconodonta (extinct) Subclass Australosphenida Ausktribosphenida Monotremata Subclass Eutheria (excludes extinct ancestors) Afrosoricida Anagaloidea (extinct) Arctostylopida (extinct) Artiodactyla Carnivora Cetacea Chiroptera Cimolesta (extinct) Cingulata Creodonta (extinct) Condylarthra (extinct) Dermoptera Desmostylia (extinct) Dinocerata (extinct) Embrithopoda (extinct) Hyracoidea Insectivora Lagomorpha Leptictida (extinct) Litopterna (extinct) Macroscelidea Mesonychia (extinct) Notoungulata...
In biology, a species is one of the basic units of biodiversity. ...
Binomial name Loxodonta africana (Blumenbach, 1797) The African Bush Elephant (Loxodonta africana) is the better-known and larger of the two species of African elephants. ...
Binomial name Loxodonta cyclotis Matschie, 1900 The African Forest Elephant (Loxodonta cyclotis) was until recently considered a subspecies of the African Bush Elephant (Loxodonta africana); however, DNA testing has now shown that there are in fact three extant elephant species: the two African types (formerly considered to be different populations...
Species Loxodonta adaurora (extinct) Loxodonta africana Loxodonta cyclotis African elephants are the two species of elephants in the Loxodonta genus, one of the two existing genera in Elephantidae. ...
Binomial name Elephas maximus Linnaeus, 1758 Asian Elephant range The Asian Elephant (Elephas maximus), sometimes known by the name of its nominate subspecies (the Indian Elephant), is one of the three living species of elephant, and the only living species of the genus Elephas. ...
// Prepleistocene extinctions A large number of historical orders are extinct, for example dinosaurs, pterosaurs and ammonites. ...
Variations in CO2, temperature and dust from the Vostok ice core over the last 400 000 years For the animated movie, see Ice Age (movie). ...
Elephants are mammals, and the largest land animals alive today. The elephant's gestation period is 22 months, the longest of any land animal. At birth it is common for an elephant calf to weigh 120 kg (265 lb). An elephant may live as long as 70 years, sometimes longer. The largest elephant ever recorded was shot in Angola in 1956. It was male and weighed about 12,000 kg (26,400 lb).[1] The smallest elephants, about the size of a calf or a large pig, were a prehistoric variant that lived on the island of Crete until 5000 BC, possibly 3000 BC. Orders Multituberculata (extinct) Palaeoryctoides (extinct) Triconodonta (extinct) Subclass Australosphenida Ausktribosphenida Monotremata Subclass Eutheria (excludes extinct ancestors) Afrosoricida Anagaloidea (extinct) Arctostylopida (extinct) Artiodactyla Carnivora Cetacea Chiroptera Cimolesta (extinct) Cingulata Creodonta (extinct) Condylarthra (extinct) Dermoptera Desmostylia (extinct) Dinocerata (extinct) Embrithopoda (extinct) Hyracoidea Insectivora Lagomorpha Leptictida (extinct) Litopterna (extinct) Macroscelidea Mesonychia (extinct) Notoungulata...
Some Giant animals are: Giant Rat, Giant Wolf, Cave Bear, Giant Squid, Colossal Squid, Condor, Irish Elk, Dinosaur (giant reptile), Giant Ant, Bird-Eating Spider, Teleoceras, Blue Whale (the largest animal on earth today), giant hare, giant owl, Elephant Bird or Moa, Giant Clam, Boa Constrictor, Giant Wombat, Giant Sloth...
Gestation is the carrying of an embryo or fetus inside a female viviparous animal. ...
For the famous World War II battle, see: Battle of Crete For other uses, see Crete (disambiguation). ...
Elephants are increasingly threatened by human intrusion. Between 1970 and 1989, the African elephant population plunged from 1.3 million to about 600,000 in 1989; the current population is estimated to be between 400,000 and 660,000.[2] The elephant is now a protected species worldwide, placing restrictions on capture, domestic use, and trade in products such as ivory. This article or section does not cite its references or sources. ...
Zoology
Comparative view of the human and elephant frames, c1860. Image File history File linksMetadata Download high resolution version (3813x2779, 1447 KB) Hawkins, Benjamin Waterhouse. ...
Image File history File linksMetadata Download high resolution version (3813x2779, 1447 KB) Hawkins, Benjamin Waterhouse. ...
Varieties It has long been known that the African and Asian elephants are separate species. African elephants tend to be larger than the Asian species (up to 4 m high and 7500 kg) and have bigger ears. Male and female African elephants have long tusks, while male and female Asian Elephants have shorter tusks, with tusks in females being almost non-existent. African elephants have a dipped back, smooth forehead and two "fingers" at the tip of their trunks, as compared with the Asian species which have an arched back, two humps on the forehead and have only one "finger" at the tip of their trunks. Binomial name Loxodonta africana (Blumenbach, 1797) The African Savannah Elephant (Loxodonta africana) is the best-known and larger of the two African elephants. ...
Binomial name Elephas maximus Linnaeus, 1758 Asian Elephant range The Asian Elephant (Elephas maximus), sometimes known by the name of its nominate subspecies (the Indian Elephant), is one of the three living species of elephant, and the only living species of the genus Elephas. ...
There are two populations of African elephants, Savannah and Forest, and recent genetic studies have led to a reclassification of these as separate species, the forest population now being called Loxodonta cyclotis, and the Savannah (or Bush) population termed Loxodonta africana. This reclassification has important implications for conservation, because it means where there were thought to be two small populations of a single endangered species, there may in fact be two separate species, each of which is even more severely endangered. There is also a potential danger in that if the forest elephant is not explicitly listed as an endangered species, poachers and smugglers might thus be able to evade the law forbidding trade in endangered animals and their body parts. Binomial name Loxodonta africana (Blumenbach, 1797) The African Savannah Elephant (Loxodonta africana) is the best-known and larger of the two African elephants. ...
Binomial name Loxodonta cyclotis Matschie, 1900 Until recently, it was thought that the so-called Forest Elephant (Loxodonta cyclotis) was simply a subspecies of the African Savannah Elephant (Loxodonta africana). ...
The Forest elephant and the Savannah elephant can hybridise successfully, though their preference for different terrains reduces the opportunities to hybridise. Many captive African elephants are probably generic African elephants as the recognition of separate species has occurred relatively recently. Although hybrids between different animal genera are usually impossible, in 1978 at Chester Zoo, an Asian elephant cow gave birth to a hybrid calf sired by an African elephant bull (the old terms are used here as this pre-dates current classifications). The pair had mated several times, but pregnancy was believed to be impossible. "Motty", the resulting hybrid male calf, had an African elephant's cheek, ears (large with pointed lobes) and legs (longer and slimmer), but the toenail numbers, (5 front, 4 hind) and the single trunk finger of an Asian elephant. The wrinkled trunk was like an African elephant. The forehead was sloping with one dome and two smaller domes behind it. The body was African in type, but had an Asian-type centre hump and an African-type rear hump. The calf died of infection 12 days later. It is preserved as a mounted specimen at the British Natural History Museum, London. There are unconfirmed rumours of three other hybrid elephants born in zoos or circuses; all are said to have been deformed and did not survive. Chester Zoo is an award winning zoological garden in Cheshire in the United Kingdom and was founded by George S. Mottershead and family. ...
Motty was the only proved hybrid between an Asian and an African elephant. ...
African Elephant -
The mammals of the genus Loxodonta, often known collectively as African elephants, are currently found in 37 countries in sub-Saharan Africa. Binomial name Loxodonta africana (Blumenbach, 1797) The African Bush Elephant (Loxodonta africana) is the better-known and larger of the two species of African elephants. ...
Binomial name Loxodonta cyclotis Matschie, 1900 The African Forest Elephant (Loxodonta cyclotis) was until recently considered a subspecies of the African Bush Elephant (Loxodonta africana); however, DNA testing has now shown that there are in fact three extant elephant species: the two African types (formerly considered to be different populations...
Download high resolution version (906x591, 94 KB)A female elephant with offspring, in Kenya. ...
Download high resolution version (906x591, 94 KB)A female elephant with offspring, in Kenya. ...
World map showing location of Africa A satellite composite image of Africa Africa is the worlds second_largest continent in both area and population, after Asia. ...
Species Loxodonta adaurora(extinct) Loxodonta africana Loxodonta cyclotis Loxodonta is a genus in Elephantidae, the family of elephants. ...
African elephants are distinguished from Asian elephants in several ways. The most noticeable difference is the ears. Africans' ears are much larger and are shaped like the continent of their origin. The African elephant is typically larger than the Asian and has a concave back. Both males and females have external tusks and are usually less hairy than their Asian cousins. African elephants have traditionally been classified as a single species composed of two distinct subspecies, namely the savanna elephant (Loxodonta africana africana) and the forest elephant (Loxodonta africana cyclotis), but recent DNA analysis suggests that these may actually constitute distinct species.[3] While this split is not universally accepted by experts[4] a third species of African elephant has also been proposed. [5] Genetic fingerprinting or DNA testing is a technique to distinguish between individuals of the same species using only samples of their DNA. Its invention by Sir Alec Jeffreys at the University of Leicester was announced in 1985. ...
Under the two species classification, Loxodonta africana refers specifically to the Savanna Elephant, the largest of all the elephants. In fact, it is the largest land animal in the world, standing up to 13 ft (4 m) at the shoulder and weighing approximately 15,400 lb (7,000 kg). The average male stands about 3 m (10 ft) high at the shoulder and weighs about 5500–6000 kg, female being much smaller. Most often, Savanna Elephants are found in open grasslands, marshes, and lakeshores. They range over much of the savanna zone south of the Sahara. An Inner Mongolian Grassland. ...
Freshwater marsh in Florida In geography, a marsh is a type of wetland, featuring grasses, rushes, reeds, typhas, sedges, cat tails, and other herbaceous plants (possibly with low-growing woody plants) in a context of shallow water. ...
A geographical map of Africa, showing the ecological break that defines the sub-Saharan area A political map showing national divisions in relation to the ecological break Sub-Saharan Africa is the term used to describe those countries of the African continent that are not considered part of North Africa. ...
The other, less numerous species is the Forest Elephant (Loxodonta cyclotis). Compared with the Savanna Elephant, its ears are usually smaller and rounder, and its tusks are also thinner and straighter and are not directed outwards so much. The Forest Elephant can weigh up to 10,000 lb (4,500 kg) and stand about 10 ft (3 m) tall. Much less is known about these animals than their savanna cousins because environmental and political obstacles make them very difficult to study. Normally they inhabit the dense African rain forests of central and western Africa, though occasionally they do inhabit the edges of forests and overlap territories and hybridize with bush elephants. In ethology, sociobiology and behavioral ecology, the term territory refers to any geographical area that an animal of a particular species consistently defends against conspecifics (and, occasionally, animals of other species). ...
In 1979, Iain Douglas-Hamilton estimated the continental population of African elephants at around 1.3 million animals.[6] Although the estimate was controversial due to the large dose of guesswork it contained, [7] it is very widely cited and has become a de facto baseline. Through the 1980s, Loxodonta received worlwide attention due to the dwindling numbers of major populations, largely as a result of poaching. Today, according to IUCN’s African Elephant Status Report 2002 [8] there are approximately between 400,000 and 650,000 African elephants in the wild. Although this estimate only covers approximately half of the total elephant range, experts do not believe the true figure to be much higher, as it is unlikely that large populations remain to be discovered.[9] By far the largest populations are now found in Southern and Eastern Africa, which together account for the majority of the continental population. According to a recent analysis by IUCN experts, most major populations in Eastern and Southern Africa are stable or have been steadily increasing since the mid-1990s, at an average rate of 4.5% per annum. [10] The World Conservation Union or International Union for Conservation of Nature and Natural Resources (IUCN) is an international organization dedicated to natural resource conservation. ...
Elephant populations in West Africa, on the other hand, are generally small and fragmented, and only account for a small proportion of the continental total. [11] Much uncertainty remains as to the size of the elephant population in Central Africa, where the prevalence of forest makes population surveys logistically difficult, but poaching for ivory and bushmeat is believed to be intense through much of the region [12]
Asian Elephant -
An Asian elephant swimming. Today scientists estimate the world population of Asian elephants, also called Indian Elephants or Elephas maximus, to be approximately 40,000, less than one-tenth the number of African elephants. Perhaps the Asian elephants' decline has been less noticeable because it has been more gradual. The causes of this decline are much the same as that of the African. Binomial name Elephas maximus Linnaeus, 1758 Asian Elephant range The Asian Elephant (Elephas maximus), sometimes known by the name of its nominate subspecies (the Indian Elephant), is one of the three living species of elephant, and the only living species of the genus Elephas. ...
Image File history File linksMetadata Elephantswimming. ...
Image File history File linksMetadata Elephantswimming. ...
As with the Loxodonta, there are distinct subspecies of Elephas maximus. In general, the Asian elephant is smaller than the African. It has smaller ears, shaped like the subcontinent of India, and typically, only the males have large external tusks. An Asian elephant can also be distinguished by the large bulges of depigmentation on the skin. Image File history File linksMetadata Download high resolution version (1266x854, 155 KB) Licensing I, the creator of this work, hereby grant the permission to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1. ...
Image File history File linksMetadata Download high resolution version (1266x854, 155 KB) Licensing I, the creator of this work, hereby grant the permission to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1. ...
The first subspecies is the Sri Lankan Asian Elephant (Elephas maximus maximus). Found only on the island of Sri Lanka, a small country off the southeast coast of India, it is the largest of the Asians. There are only an estimated 3,000-4,500 members of this subspecies left today in the wild, although no accurate census has been carried out in the recent past. Large males can weigh upward to 12,000 lb and stand over 11 feet tall. Sri Lankan males have very large cranial bulges, and both sexes have more areas of depigmentation than are found in the other Asians. Typically, their ears, face, trunk, and belly have large concentrations of pink-speckled skin. There is an Orphanage for elephants in Pinnawala Sri Lanka, which gives shelter to disabled, injured elephants. This program plays a large role in protecting the Sri Lankan Elephant from extinction. The Sri Lankan Elephant is from all appearances identical to the Asian Elephant (Elephas maximus) except in one respect â its size. ...
An orphanage (historically an orphans asylum before the latter word took on its modern insane asylum connotation) is an institution dedicated to caring for orphans (children who have lost their parents) and abused, abandoned, and neglected children. ...
Pinnawala is a village in Kegalle district of Sri Lanka. ...
The Dodo, shown here in illustration, is an often-cited[1] example of extinction. ...
Another subspecies, the Mainland Asian Elephant (Elephas maximus indicus) makes up the bulk of the Asian elephant population. Numbering approximately 36,000, these elephants are lighter gray in colour, with depigmentation only on the ears and trunk. Large males will ordinarily weigh only about 11,000 lb but are as tall as the Sri Lankan. The mainland Asian can be found in 11 Asian countries, from India to Indonesia. They prefer forested areas and transitional zones, between forests and grasslands, where greater food variety is available. Binomial name Elephas maximus Linnaeus, 1758 The Asian Elephant (Elephas maximus) is a species of elephant formerly known as the Indian Elephant. ...
The smallest of all the elephants is the Sumatran Asian Elephant (Elephas maximus sumatranus). Population estimates for this group range from 33,000 to 53,000 individuals. It is very light gray and has less depigmentation than the other Asians, with pink spots only on the ears. Mature Sumatrans will usually only measure about 10 ft (3 m) at the shoulder and weigh less than 9,000 lb. An enormous animal nonetheless, it is considerably smaller than its other Asian (and African) cousins and exists only on the island of Sumatra, usually in forested regions and partially wooded habitats. The Sumatran Elephant is a subspecies of the Asian Elephant. ...
In 2003 a further subspecies was identified on Borneo. Named the Borneo pygmy elephant, it is smaller and tamer than other Asian elephants. It also has relatively larger ears, longer tail and straighter tusks. Borneo (left) and Sulawesi. ...
Body characteristics Trunk
An elephant can use its trunk for a variety of purposes. This one is wiping its eye. The proboscis, or trunk, is a fusion of the nose and upper lip, elongated and specialized to become the elephant's most important and versatile appendage. African elephants are equipped with two fingerlike projections at the tip of their trunk, while Asians have only one. According to biologists, the elephant's trunk is said to have over forty thousand individual muscles in it[1], making it sensitive enough to pick up a single blade of grass, yet strong enough to rip the branches off a tree. Some sources indicate that the correct number of muscles in an elephant's trunk is nearer to one hundred thousand. [2] Wikipedia does not have an article with this exact name. ...
Wikipedia does not have an article with this exact name. ...
Most herbivores (plant eaters, like the elephant) are adapted with teeth for cutting and tearing off plant materials. However, except for the very young or infirm, elephants always use their trunks to tear up their food and then place it in their mouth. They will graze on grass or reach up into trees to grasp leaves, fruit, or entire branches. If the desired food item is too high up, the elephant will wrap its trunk around the tree or branch and shake its food loose or sometimes simply knock the tree down altogether. The trunk is also used for drinking. Elephants suck water up into the trunk (up to fifteen quarts [14.2 liters] at a time) and then blow it into their mouth. Elephants also inhale water to spray on their body during bathing. On top of this watery coating, the animal will then spray dirt and mud, which act as a protective sunscreen. In zoology, an herbivore is an animal that is adapted to eat primarily plants (rather than meat). ...
This appendage also plays a key role in many social interactions. Familiar elephants will greet each other by entwining their trunks, much like a handshake. They also use them while play-wrestling, caressing during courtship, and for dominance displays - a raised trunk can be a warning or threat, while a lowered trunk can be a sign of submission. Elephants can defend themselves very well by flailing their trunk at unwanted intruders or by grasping and flinging them. An elephant also relies on its trunk for its highly developed sense of smell. Raising the trunk up in the air and swivelling it from side to side, like a periscope, it can determine the location of friends, enemies, and food sources.
Tusks The tusks of an elephant are its second upper incisors. Tusks grow continuously; an adult male's tusks will grow about seven inches a year. Tusks are used to dig for water, salt, and roots; to debark trees, to eat the bark; to dig into baobab trees to get at the pulp inside; and to move trees and branches when clearing a path. In addition, they are used for marking trees to establish territory and occasionally as weapons. Pacific Walrus at Cape Peirce A tusk is an extremely long tooth of certain mammals that protrudes when the mouth is closed. ...
Incisors are the first kind of tooth in heterodont mammals. ...
Species See text The baobab (Adansonia), or monkey bread tree are a genus of eight species of trees, native to Madagascar (the centre of diversity, with six species), and mainland Africa and Australia (one species in each). ...
Like humans who are typically right- or left-handed, elephants are usually right- or left-tusked. The dominant tusk, called the master tusk, is generally shorter and more rounded at the tip from wear. Both male and female African elephants have large tusks that can reach over 10 ft (3 m) in length and weigh over 200 lb (90 kg). In the Asian species, only the males have large tusks. Female Asians have tusks which are very small or absent altogether. Asian males can have tusks as long as the much larger Africans, but they are usually much slimmer and lighter; the heaviest recorded is 86 lb (39 kg). The tusk of both species is mostly made of calcium phosphate in the form of apatite. As a piece of living tissue, it is relatively soft (compared with other minerals such as rock), and the tusk, also known as ivory, is strongly favoured by artisans for its carvability. The desire for elephant ivory has been one of the major factors in the dramatic decline of the world's elephant population. Calcium phosphate is the name given to a family of minerals containing calcium ions (Ca2+) together with orthophosphates (PO43-), metaphosphates or pyrophosphates (P2O74-) and occasionally hydrogen or hydroxide ions. ...
ske| Fracture|| Conchoidal to even Apatite is a group of phosphate minerals, usually referring to hydroxylapatite, fluorapatite, and chlorapatite, named for high concentrations of OH-, F-, or Cl- ions, respectively, in the crystal. ...
This article or section does not cite its references or sources. ...
Some extinct relatives of elephants had tusks in their lower jaws also (e.g. Tetrabelodon), or instead (e.g. Dinotherium). Dinotherium: An extinct kindred species of the modern elephants that were larger than modern African and Asian elephants and possess downward-bending tusks. ...
Teeth Elephants' teeth are very different from those of most other mammals. Over their lives they usually have 28 teeth. These are: This does not cite its references or sources. ...
Unlike most mammals, which grow baby teeth and then replace them with a permanent set of adult teeth, elephants have cycles of tooth rotation throughout their entire life. After one year the tusks are permanent, but the other teeth are replaced five times in an elephant's life. The teeth do not emerge from the jaws vertically like with human teeth. Instead, they have a horizontal progression, like a conveyor belt. New teeth grow in at the back of the mouth, pushing older teeth toward the front, where they wear down with use and the remains fall out. When an elephant becomes very old, the last set of teeth is worn to stumps, and it must rely on softer foods to chew. Very elderly elephants often spend their last years exclusively in marshy areas where they can feed on soft wet grasses. Eventually, when the last teeth fall out, the elephant will be unable to eat and will die of starvation. Were it not for tooth wearout, their metabolism would allow them to live much longer. Rupert Sheldrake has proposed this as an explanation for the elephant graveyards. However, as more habitat is destroyed, the elephants' living space becomes smaller and smaller; the elderly no longer have the opportunity to roam in search of more appropriate food and will, consequently, die of starvation at an earlier age. Pacific Walrus at Cape Peirce A tusk is an extremely long tooth of certain mammals that protrudes when the mouth is closed. ...
...
The premolar teeth or bicuspids are transitional teeth located between the canine and molar teeth. ...
Molar 47 (left), molar 46 and premolar 45(right) Molars are the rearmost and most complicated kind of tooth in most mammals. ...
Radiograph of lower right (from left to right) third, second, and first molars in different stages of development. ...
Rupert Sheldrake Dr. Rupert Sheldrake, born 28th June 1942 [1] is a British biologist and author. ...
According to popular myth, older elephants instinctively leave their group when they reach a certain age, and direct themselves toward a special area, known as the elephants graveyard. ...
Tusks in the lower jaw are also second incisors. These grew out large in Dinotherium and some mastodons, but in modern elephants they disappear early without erupting. Dinotherium: An extinct kindred species of the modern elephants that were larger than modern African and Asian elephants and possess downward-bending tusks. ...
Mastodons or Mastodonts are members of the extinct genus Mammut of the order Proboscidea and form the family Mammutidae; they resembled, but were distinct from, the woolly mammoth which belongs to the family Elephantidae. ...
Types of teeth Molars are used for grinding up foods Carnassials are used for slicing food. ...
Skin
Skin of an African elephant Elephants are called pachyderms, which means thick-skinned animals. An elephant's skin is extremely tough around most parts of its body and measures about 2.5 cm (1 in) thick. However, the skin around the mouth and inside of the ear is paper thin. Normally, the skin of an Asian is covered with more hair than its African counterpart. This is most noticeable in the young. Asian calves are usually covered with a thick coat of brownish red fuzz. As they get older, this hair darkens and becomes more sparse, but it will always remain on their heads and tails. Image File history File links Download high resolution version (2712x2386, 3933 KB) This image was originally posted to Flickr as elephant mugshot. ...
Image File history File links Download high resolution version (2712x2386, 3933 KB) This image was originally posted to Flickr as elephant mugshot. ...
The species of elephants are typically grayish in colour, but the Africans very often appear brown or reddish from wallowing in mud holes of coloured soil. Wallowing is actually a very important behaviour in elephant society. Not only is it important for socialization, but the mud acts as a sunscreen, protecting their skin from harsh ultraviolet radiation. Though tough, an elephant's skin is very sensitive. Without regular mud baths to protect it from burning, as well as from insect bites and moisture loss, an elephant's skin would suffer serious damage. After bathing, the elephant will usually use its trunk to blow dirt on its body to help dry and bake on its new protective coat. As elephants are limited to smaller and smaller areas, there is less water available, and local herds will often come too close over the right to use these limited resources. Wallowing also aids the skin in regulating body temperatures. Elephants spend every day fighting an uphill battle to stay cool. They have a very difficult time releasing heat through the skin because, in proportion to their body size, they have very little of it. The ratio of an elephant's mass to the surface area of its skin is many times that of a human. Elephants have even been observed lifting up their legs to expose the soles of their feet, presumably in an effort to expose more skin to the air. Since wild elephants live in very hot climates, they must have other means of getting rid of excess heat.
Legs and Feet
Elephant using its feet to crush a watermelon prior to eating it An elephant's legs are great straight pillars, as they must be to support its bulk. The elephant needs less muscular power to stand because of its straight legs. For this reason an elephant can stand for very long periods of time without tiring. In fact, African elephants rarely lie down unless they are sick or wounded. However, Indian elephants lie down frequently. Elephants are the only mammals to have four knees, most others either have two knees and two elbows, though the knees are often found in the front legs, or they have four elbows, like cats or dogs. Image File history File links Download high-resolution version (1600x1067, 685 KB) Asian Elephant eating a watermelon, Melbourne Zoo If you are a (commercial) publisher and you want me to write you an email or paper mail giving you an authorization to use my works in your products or a...
Image File history File links Download high-resolution version (1600x1067, 685 KB) Asian Elephant eating a watermelon, Melbourne Zoo If you are a (commercial) publisher and you want me to write you an email or paper mail giving you an authorization to use my works in your products or a...
The feet of an elephant are nearly round. African elephants have three nails on each hind foot, and four on each front foot. Indian elephants have four nails on each hind foot and five on each front foot. Beneath the bones of the foot is a tough, gelatine-like material that acts as a cushion or shock absorber. Under the elephant's weight the foot swells, but it gets smaller when the weight is removed. An elephant can sink deep into mud, but can pull its legs out readily because its feet become smaller when they are lifted. An elephant is a good swimmer and climber, but it can neither trot, run, jump, nor gallop. It has only one gait, a sort of gliding shuffle, which it can step up to the speed of a human sprinter. There are few animals that can travel farther in a day than the elephant.
Ears The large flapping ears of an elephant are also very important for temperature regulation. Elephant ears are made of a very thin layer of skin stretched over cartilage and a rich network of blood vessels. On hot days, elephants will flap their ears constantly, creating a slight breeze. This breeze cools the surface blood vessels, and then the cooler blood gets circulated to the rest of the animal's body. The hot blood entering the ears can be cooled as much as ten degrees Fahrenheit before returning to the body. Differences in the ear sizes of African and Asian elephants can be explained, in part, by their geographical distribution. Africans originated and stayed near the equator, where it is warmer. Therefore, they have bigger ears. Asians live farther north, in slightly cooler climates, and thus have smaller ears. Image File history File links Anakotta1. ...
Image File history File links Anakotta1. ...
The Elephant Sanctuary in Hohenwald, Tennessee, was founded in 1995 as the United States first elephant refuge, recreating a natural habitat for sick, old, and/or needy elephants. ...
Elephant Sanctuary at Punnathur kotta, Guruvayoor. ...
(IPA: ; ) is a state on the Malabar Coast of southwestern India. ...
South India is a linguistic-cultural region of India that comprises the four Indian states of Andhra Pradesh, Karnataka, Kerala and Tamil Nadu and the Union Territory of Pondicherry, whose inhabitants are collectively referred to as South Indians. ...
The ears are also used in certain displays of aggression and during the males' mating period. If an elephant wants to intimidate a predator or rival, it will spread its ears out wide to make itself look more massive and imposing. During the breeding season, males give off an odor from a gland located behind their eyes. Joyce Poole, a well-known elephant researcher, has theorized that the males will fan their ears in an effort to help propel this "elephant cologne" great distances. Walking at a normal pace an elephant covers about 2 to 4 miles an hour (3 to 6 km/h) but they can reach 24 miles an hour (40 km/h) at full speed.
Evolution Although the fossil evidence is uncertain, some scientists believe there is genetic evidence that the elephant family shares distant ancestry with the Sirenians (sea cows) and the hyraxes. In the distant past, members of the hyrax family grew to large sizes, and it seems likely that the common ancestor of all three modern families was some kind of amphibious hyracoid. One theory suggests that these animals spent most of their time under water, using their trunks like snorkels for breathing. Modern elephants have retained this ability and are known to swim in that manner for up to 6 hours and 50 km. Families Dugongidae Trichechidae Hydrochichus (extinct) For information about the Gothic metal band, see Sirenia (band) The Sirenia are fully aquatic, herbivorous mammals that inhabit rivers, estuaries and coastal marine waters. ...
Genera Procavia Heterohyrax Dendrohyrax A hyrax (in South African English: klipdassie) is any of four species of fairly small, thickset, herbivorous mammals in the order Hyracoidea. ...
Snorkel A snorkel (also spelled schnorkel or schnorchel) is a tube that allows a person, vehicle, or vessel to draw air while submerged under water. ...
In the past, there was a much wider variety of elephant genera, including the mammoths, stegodons and deinotheria. There was also a much wider variety of species.[13][14] Species Mammuthus africanavus African mammoth Mammuthus columbi Columbian mammoth Mammuthus exilis Pygmy mammoth Mammuthus jeffersonii Jeffersonian mammoth Mammuthus trogontheri Steppe mammoth Mammuthus meridionalis Mammuthus primigenius Woolly mammoth Mammuthus lamarmorae Sardinian Dwarf Mammoth A mammoth is any of a number of an extinct genus of elephant, often with long curved tusks...
Stegodon is a genus of the extinct subfamily Stegodontinae of the order Proboscidea. ...
Species Deinotherium bozasi Arambourg, 1934 Deinotherium giganteus Kaup, 1829 Deinotherium indicum Falconer, 1845 Deinotherium (terrible beast) was a huge prehistoric proto-elephant that appeared in the Middle Miocene and continued until the Early Pleistocene. ...
Diet
Asian Elephant eating a watermelon Elephants are herbivores, spending 16 hours a day collecting plant food. Their diet is at least 50% grasses, supplemented with leaves, bamboo, twigs, bark, roots, and small amounts of fruits, seeds and flowers. Because elephants only digest 40% of what they eat, they have to make up for their digestive system's lack of efficiency in volume. An adult elephant can consume 300–600 lb (140–270 kg) of food a day. 60% of that food leaves the elephant's body undigested. Image File history File links Download high-resolution version (1600x1067, 719 KB) Asian Elephant eating a watermelon, Melbourne Zoo If you are a (commercial) publisher and you want me to write you an email or paper mail giving you an authorization to use my works in your products or a...
Image File history File links Download high-resolution version (1600x1067, 719 KB) Asian Elephant eating a watermelon, Melbourne Zoo If you are a (commercial) publisher and you want me to write you an email or paper mail giving you an authorization to use my works in your products or a...
A deer and two fawns feeding on some foliage A herbivore is often defined as any organism that eats only plants[1]. By that definition, many fungi, some bacteria, many animals, about 1% of flowering plants and some protists can be considered herbivores. ...
Social behavior Elephants live in a very structured social order. The social lives of male and female elephants are very different. The females spend their entire lives in tightly knit family groups made up of mothers, daughters, sisters, and aunts. These groups are led by the eldest female, or matriarch. Adult males, on the other hand, live mostly solitary lives. The social circle of the female elephant does not end with the small family unit. In addition to encountering the local males that live on the fringes of one or more groups, the female's life also involves interaction with other families, clans, and subpopulations. Most immediate family groups range from five to fifteen adults, as well as a number of immature males and females. When a group gets too big, a few of the elder daughters will break off and form their own small group. They remain very aware of which local herds are relatives and which are not. The life of the adult male is very different. As he gets older, he begins to spend more time at the edge of the herd, gradually going off on his own for hours or days at a time. Eventually, days become weeks, and somewhere around the age of fourteen, the mature male, or bull, sets out from his natal group for good. While males do live primarily solitary lives, they will occasionally form loose associations with other males. These groups are called bachelor herds. The males spend much more time than the females fighting for dominance with each other. Only the most dominant males will be permitted to breed with cycling females. The less dominant ones must wait their turn. It is usually the older bulls, forty to fifty years old, that do most of the breeding. The dominance battles between males can look very fierce, but typically they inflict very little injury. Most of the bouts are in the form of aggressive displays and bluffs. Ordinarily, the smaller, younger, and less confident animal will back off before any real damage can be done. However, during the breeding season, the battles can get extremely aggressive, and the occasional elephant is injured. During this season, known as musth, a bull will fight with almost any other male it encounters, and it will spend most of its time hovering around the female herds, trying to find a receptive mate. Musth is a periodic condition in bull elephants, characterized by a thick, tar-like secretion from the temporal ducts and, far more notably, by highly aggressive behaviour. ...
Self-awareness From a study reported in Proceedings of the National Academy of Sciences, an Asian elephant housed at the Bronx Zoo in New York, repeatedly touched a white cross painted above its eye, when it saw this mark reflected in a large mirror. Another mark made on the forehead in colourless paint, was ignored, showing that it was not the smell or feeling which caused the interest. Elephants are among the very small number of species such as the great apes and Bottlenose Dolphins capable of self-recognition.[15][16] The mirror test is a measure of self-awareness developed by Gordon Gallup Jr in 1970. ...
Genera Subfamily Ponginae Pongo - Orangutans Gigantopithecus (extinct) Sivapithecus (extinct) Subfamily Homininae Gorilla - Gorillas Pan - Chimpanzees Homo - Humans Paranthropus (extinct) Australopithecus (extinct) Sahelanthropus (extinct) Ardipithecus (extinct) Kenyanthropus (extinct) Pierolapithecus (extinct) (tentative) The Hominids (Hominidae) are a biological family which includes humans, extinct species of humanlike creatures and the other great apes...
Binomial name Tursiops truncatus Montagu, 1821 Bottlenose Dolphin range (in blue) The Bottlenose Dolphin (Tursiops truncatus) is the most common and well-known dolphin species. ...
Homosexuality African, as well as Asiatic males will engage in same-sex bonding and mounting. Such encounters are often associated with affectionate interactions such as kissing, trunk intertwining or placing trunks in each other's mouth. The encounters are analogous to heterosexual bouts, one male often extending his trunk along the others back and pushing forward with his tusks to signify his intention to mount. Unlike heterosexual relations, which are always of a fleeting nature, often males will form a "companionship" consisting of an older individual and one or two younger attendant males. Same sex relations are common and frequent in both sexes, with Asiatic elephants in captivity devoting roughly 45% of sexual encounters to same-sex activity.[17]
Communication It has been discovered that elephants can communicate over long distances by producing and receiving low frequency infrasound, a sub-sonic rumbling which can travel through the ground farther than sound travels in the air. This can be felt by the sensitive skin of an elephant's feet and trunk, which pick up the resonant vibrations in much the same way as the flat skin on the head of a drum. To listen attentively, the whole herd will lift one foreleg from the ground, and face the source of the sound, or often lay their trunks on the ground - the lifting presumably increases the ground contact and sensitivity of the remaining legs. This ability is thought to also aid their navigation by utilising external sources of infrasound. Discovery of this new aspect of elephant social communication and perception is due to breakthroughs in audio technology, which can pick up frequencies outside the range of the human ear. Pioneering research in elephant infrasound communication was done by Katy Payne of the Elephant Listening Project,[18] and is detailed in her book Silent Thunder. Though this research is still in its infancy, it is helping to solve many prior mysteries such as how elephants can find distant potential mates, and how social groups are able to coordinate their movements over an extensive territory range.
Reproduction, calves, and calf rearing Reproduction Females (cows) reach sexual maturity at around 9-12 years of age and become pregnant for the first time, on average, around age 13. They can reproduce until ages 55-60. Females give birth at intervals of about every 5 years. An elephant's gestation (pregnancy) period lasts about 22 months (630-660 days), the longest gestation period of any mammal, after which one calf typically is born. Twins are rare. Labor ranges in length from 5 minutes to 60 hours. The average length of labor is 11 hours. At birth, calves weigh around 90–115 kg (200–250 lb), and they gain 1 kg (2–2.5 lb) a day. In the wild, the mother is accompanied by other adult females (aunts) that protect the young, and baby elephants are raised and nurtured by the whole family group, practically from the moment they are born. Gestation is the carrying of an embryo or fetus inside a female viviparous animal. ...
Motherhood and calf rearing - The first sound a newborn calf usually makes is a sneezing or snorting sound to clear its nasal passages of fluids. (In the first few minutes after a captive birth, the keepers must monitor the calf closely for the first sound or movement. Whichever happens first, the mother typically responds to her new baby with surprise and excitement.)
- With the help of its mother, a newborn calf usually struggles to its feet within 30 minutes of birth. For support, it will often lean on its mother's legs.
- A newborn calf usually stands within one hour and is strong enough to follow its mother in a slow-moving herd within a few days.
- Unlike most mammals, female elephants have a single pair of mammary glands located just behind the front legs. When born, a calf is about 3 ft (90 cm) high, just tall enough to reach its mother's nipples.
- A calf suckles with its mouth, not its trunk, which has no muscle tone. To clear the way to its mouth so it can suckle, the calf will flop its trunk onto its forehead.
- A newborn calf suckles for only a few minutes at a time but will suckle many times per day, consuming up to 11 litres (3 gallons) of milk in a single day.
- A calf may nurse for up to 2 years of age or older. Complete weaning depends on the disposition of the mother, the amount of available milk, and the arrival of another calf.
- Newborn calves learn primarily by observing adults, not from instinct. For example, a calf learns how to use its trunk by watching older elephants using their trunks.
- It takes several months for a calf to control the use of its trunk. This can be observed as the calf trips over its trunk or as the trunk wiggles like a rubbery object when the calf shakes its head.
This article or section does not cite its references or sources. ...
A fluid is defined as a substance that continually deforms (flows) under an applied shear stress regardless of the magnitude of the applied stress. ...
Mammary glands are milk-secreting adaptations of sweat glands and are the characteristic of mammals which gave the class its name. ...
Muscle tone is the continuous and passive partial contraction of the muscles. ...
A breastfeeding infant Breastfeeding is the practice of a woman feeding an infant (or sometimes a toddler or a young child) with milk produced from her mammary glands, usually directly from the nipples. ...
The suckling of a newborn at its mothers nipple is an example of an instinctive behavior. ...
Elephant calves Elephant social life, in many ways, revolves around breeding and raising of the calves. A female will usually be ready to breed around the age of thirteen, at which time she will seek out the most attractive male to mate with. Females are generally attracted to bigger, stronger, and, most importantly, older males. Such a reproductive strategy tends to increase their offsprings' chances of survival. After a twenty-two-month pregnancy, the mother will give birth to a calf that will weigh about 250 lb and stand over 2½ feet tall. Elephants have a very long childhood. They are born with fewer survival instincts than many other animals. Instead, they must rely on their elders to teach them the things they need to know. The ability to pass on information and knowledge to their young has always been a major asset in the elephant's struggle to survive. Today, however, the pressures humans have put on the wild elephant populations, from poaching to habitat destruction, mean that the elderly often die at a younger age, leaving fewer teachers for the young. All members of the tightly knit female group participate in the care and protection of the young. Since everyone in the herd is related, there is never a shortage of baby-sitters. In fact, a new calf is usually the center of attention for all herd members. All the adults and most of the other young will gather around the newborn, touching and caressing it with their trunks. The baby is born nearly blind and at first relies, almost completely, on its trunk to discover the world around it.
Allomothers After the initial excitement dies down, the mother will usually select several full-time baby-sitters, or "allomothers", from her group. According to Cynthia Moss, a well-known researcher, these allomothers will help in all aspects of raising the calf.[citation needed] They walk with the young as the herd travels, helping the calves along if they fall or get stuck in the mud. The more allomothers a baby has, the more free time its mother has to feed herself. Providing a calf with nutritious milk means the mother has to eat more nutritious food herself. So, the more allomothers, the better the calf's chances of survival.
Effect on the environment Elephants' foraging activities help to maintain the areas in which they live: - By pulling down trees to eat leaves, breaking branches, and pulling out roots they create clearings in which new young trees and other vegetation grow to provide future nutrition for elephants and other organisms.
- Elephants make pathways through the environment that are used by other animals to access areas normally out of reach. The pathways have been used by several generations of elephants, and today people are converting many of them to paved roads.
- During the dry season elephants use their tusks to dig into dry river beds to reach underground sources of water. These newly dug water holes may become the only source of water in the area.
- Elephants are a species which many other organisms depend on. For example, termites eat elephant feces and often begin building termite mounds under piles of elephant feces.
Water is an odourless substance that is essential to all known forms of life and is known as the universal solvent. ...
Families Mastotermitidae Kalotermitidae Termopsidae Hodotermitidae Rhinotermitidae Serritermitidae Termitidae Reference: Earthlife as of 2002-07-26 A termite (also known as a white ant) is any member of the order Isoptera, a group of social insects that eat wood and other cellulose-rich vegetable matter. ...
Threat of extinction The threat to the African elephant presented by the ivory trade is unique to the species. Another threat to elephant's survival in general is the ongoing cultivation of their habitats with increasing risk of conflicts of interest with human cohabitants. These conflicts kill 150 elephants and up to 100 people per year in Sri Lanka.[19] Lacking the massive tusks of its African cousins, the Asian elephant's demise can be attributed mostly to loss of its habitat. As larger patches of forest disappear, the ecosystem is affected in profound ways. The trees are responsible for anchoring soil and absorbing water runoff. Floods and massive erosion are common results of deforestation. Elephants need massive tracts of land because, much like the slash-and-burn farmers, they are used to crashing through the forest, tearing down trees and shrubs for food and then cycling back later on, when the area has regrown. As forests are reduced to small pockets, elephants become part of the problem, quickly destroying all the vegetation in an area, eliminating all their resources. Larger, long-lived, slow-breeding animals, like the elephant, are more susceptible to overhunting than other animals. They cannot hide, and it takes many years for an elephant to grow and reproduce. An elephant needs an average of 300 lb (140 kg) of vegetation a day to survive. As large predators are hunted, the local small grazer populations (the elephant's food competitors) find themselves on the rise. The increased number of herbivores ravage the local trees, shrubs, and grasses. However, despite all the fears of extinction, some scholars claim that the elephant population of Africa as a whole has actually increased over the past ten years, most notably in Botswana, which currently is experiencing elephant overpopulation. [3]
National parks Africa's first official reserve eventually became one of the world's most famous and successful national parks. Kruger National Park in South Africa first became a reserve against great opposition in 1898 (then Sabi Reserve). It was deproclaimed and reproclaimed several times before it was renamed and granted national park status in 1926. It was to be the first of many. Image File history File links Download high resolution version (1280x853, 401 KB) Summary Taken by Schuyler S. in the Ngorongoro creator, Tanzania Canon 350 Licensing File links The following pages link to this file: Elephant ...
Image File history File links Download high resolution version (1280x853, 401 KB) Summary Taken by Schuyler S. in the Ngorongoro creator, Tanzania Canon 350 Licensing File links The following pages link to this file: Elephant ...
View of the Ngorongoro Crater The Ngorongoro Conservation Area or NCA is a conservation area situated 180 km west of Arusha in the Crater Highlands area of Tanzania. ...
A zebra in the Kruger National Park Kruger National Park is the largest game reserve in South Africa. ...
1898 (MDCCCXCVIII) was a common year starting on Saturday (see link for calendar) of the Gregorian calendar (or a common year starting on Monday of the 12-day-slower Julian calendar). ...
Of course, there were many problems in establishing these reserves. For example, elephants range through a wide tract of land with little regard for national borders. however, when most parks were created, the boundaries were drawn at the human-made borders of individual countries. Once a fence was erected, many animals found themselves cut off from their winter feeding grounds or spring breeding areas. Some animals died as a result, while some, like the elephants, just trampled through the fences. This did little to belie their image as a crop-raiding pest. The more often an elephant wandered off its reserve, the more trouble it got into, and the more chance it had of being shot by an angry farmer. When confined to small territories, elephants can inflict an enormous amount of damage to the local landscapes. Today there are still many problems associated with these parks and reserves, but there is now little question as to whether or not they are necessary. As scientists learn more about nature and the environment, it becomes very clear that these parks may be the elephant's last hope against the rapidly changing world around them. Additionally, Kruger N
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