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Until recently, it was thought that the so-called Forest Elephant (Loxodonta cyclotis) was simply a subspecies of the African Savannah Elephant (Loxodonta africana). DNA testing has now shown that there are in fact three extant elephant species: the two African types (formerly considered to be separate populations of a single species, the African Elephant) and the South Asian species, known as the Indian or Asian Elephant. The North African elephant of Hannibal fame was a now-extinct fourth species or a subspecies of the Forest Elephant (Loxodonta (africana) pharaoensis); it disappeared around the 1st or 2nd century AD. The disputed dwarf elephants of the Congo basin, often assumed to be a separate species (Loxodonta pumilio), are probably Forest Elephants whose diminutive size and/or early maturity is due to environmental conditions. Photographer: Dan Koehl Place: Frankfurt Zoo, Germany, 1976 Species: Loxodonta cyclotis, african forest elephant. ...
Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms. ...
Phyla Porifera (sponges) Ctenophora (comb jellies) Cnidaria (coral, jellyfish, anenomes) Placozoa (trichoplax) Subregnum Bilateria (bilateral symmetry) Acoelomorpha (basal) Orthonectida (parasitic to flatworms, echinoderms, etc. ...
Typical Classes Subphylum Urochordata - Tunicates Ascidiacea Thaliacea Larvacea Subphylum Cephalochordata - Lancelets Subphylum Myxini - Hagfishes Subphylum Vertebrata - Vertebrates Petromyzontida - Lampreys Placodermi (extinct) Chondrichthyes - Cartilaginous fishes Acanthodii (extinct) Actinopterygii - Ray-finned fishes Actinistia - Coelacanths Dipnoi - Lungfishes Amphibia - Amphibians Reptilia - Reptiles Aves - Birds Mammalia - Mammals Chordates (phylum Chordata) include the vertebrates, together with...
Orders Subclass Multituberculata (extinct) Plagiaulacida Cimolodonta Subclass Palaeoryctoides (extinct) Subclass Triconodonta (extinct) Subclass Eutheria (includes extinct ancestors)/Placentalia (excludes extinct ancestors) Afrosoricida Artiodactyla Carnivora Cetacea Chiroptera Cimolesta (extinct) Creodonta (extinct) Condylarthra (extinct) Dermoptera Desmostylia (extinct) Embrithopoda (extinct) Hyracoidea Insectivora Lagomorpha Litopterna (extinct) Macroscelidea Mesonychia (extinct) Notoungulata (extinct) Perissodactyla Pholidota Plesiadapiformes...
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) For the plant genus Proboscidea see, Unicorn plant Proboscidea is an order containing only one family of...
Genera and Species Loxodonta Loxodonta cyclotis Loxodonta africana Elephas Elephas maximus Proboscidea is an order including only one extant family, Elephantidae or the elephants, with three species: the Savannah Elephant and Forest Elephant (which were collectively known as the African Elephant), and the Asian Elephant (formerly known as the Indian...
Species Loxodonta adaurora Loxodonta africana Loxodonta cyclotis Loxodonta is a genus in Elephantidae, the family of elephants. ...
In biology, binomial nomenclature is the formal method of naming species. ...
Paul Matschie (1861 - 1926) was a German zoologist. ...
1900 (MCM) is a common year starting on Monday. ...
In zoology, as in other branches of biology, subspecies is the rank immediately subordinate to a species. ...
A satellite composite image of Africa Africa is the worlds second-largest and second most populous continent, after Asia. ...
Binomial name Loxodonta africana (Blumenbach, 1797) The African Savannah Elephant (Loxodonta africana) is the best-known and larger of the two African elephants. ...
3D model of a section of the DNA molecule Deoxyribonucleic acid (DNA) is a nucleic acid that contains the genetic instructions specifying the biological development of all cellular forms of life (and most viruses). ...
Genera and Species Loxodonta Loxodonta cyclotis Loxodonta africana Elephas Elephas maximus Elephas recki â Stegodon â Mammuthus â Elephantidae (the elephants) is a family of animals, and the only remaining family in the order Proboscidea. ...
In biology, a species is the basic unit of biodiversity. ...
See also: Asian and Eurasian World map showing Asia. ...
Binomial name Elephas maximus Linnaeus, 1758 The Asian Elephant, sometimes known as the Indian Elephant (Elephas maximus) is one of the two or three living species of elephant. ...
Hannibals feat in crossing the Alps with war elephants passed into European legend: a fresco detail, 1510, Capitoline Museums, Rome Hannibal (from Punic, literally Baal is merciful to me, 247 BC â 183 BC) (sometimes referred to as Hannibal Barca) was a politician, statesman and considered one of the greatest...
Differences include the Forest Elephant's long, narrow mandible (the Savannah Elephant's is short and wide), its rounded ears (a Savannah Elephant's ears are more pointed), a different number of toenails, different tusks, and considerably smaller size. Male Forest Elephants rarely exceed 2.5 metres (8 feet) in height, while Savannah Elephants are usually over 3 metres (just under 10 feet) and sometimes almost 4 metres (13 feet) tall. The mandible (inferior maxillary bone) (together with the maxilla) is the largest and strongest bone of the face. ...
Pacific Walrus at Cape Peirce A tusk is an extremely long tooth of certain mammals that protrudes when the mouth is closed. ...
Binomial name Loxodonta africana (Blumenbach, 1797) The African Savannah Elephant (Loxodonta africana) is the best-known and larger of the two African elephants. ...
Late in the 20th century, conservation workers established a DNA identification system to trace the origin of poached ivory. It had long been known that the ivory of Forest Elephants was particularly hard, with a pinkish tinge, and straight (whereas that of the Savannah Elephant is curved). The DNA tests, however, indicated that the two populations were much more different than previously appreciated—indeed, in its genetic makeup, the Forest Elephant is almost two-thirds as distinct from the Savannah Elephant as the Asian Elephant is. (19th century - 20th century - 21st century - more centuries) Decades: 1900s 1910s 1920s 1930s 1940s 1950s 1960s 1970s 1980s 1990s As a means of recording the passage of time, the 20th century was that century which lasted from 1901–2000 in the sense of the Gregorian calendar (1900–1999 in the...
An elaborately carved ivory decoration Ivory is a hard, white, opaque substance that is the bulk of the teeth and tusks of animals such as the elephant, hippopotamus, walrus, mammoth, etc. ...
Bibliography
- Alfred L. Roca, Max Voril, Jill Pecon-Slattery, Stephen J. O'Brien. Genetic Evidence for Two Species of Elephant in Africa. Science, Vol 293, Issue 5534, 1473-1477, 24 August 2001 [1].
August 24 is the 236th day of the year in the Gregorian Calendar (237th in leap years), with 129 days remaining. ...
2001: A Space Odyssey. ...
External link PBS Nature: Tracking Forest Elephants |