|
The Pygmy Sperm Whale (Kogia breviceps) is one of three species of toothed whale in the sperm whale family. They are not often sighted at sea, and most of our understanding of the creatures comes from the study of washed-up specimens. Image File history File links Kogia_breviceps. ...
Image File history File links This is a lossless scalable vector image. ...
The conservation status of a species is an indicator of the likelihood of that species continuing to survive either in the present day or the future. ...
Image File history File links Status_iucn2. ...
Least Concern (LC) is an IUCN category assigned to extant species or lower taxa which have been evaluated but do not qualify for any other category. ...
Scientific classification or biological classification is a method by which biologists group and categorize species of organisms. ...
For other uses, see Animal (disambiguation). ...
Typical Classes See below Chordates (phylum Chordata) are a group of animals that includes the vertebrates, together with several closely related invertebrates. ...
Orders Subclass Monotremata Monotremata Subclass Marsupialia Didelphimorphia Paucituberculata Microbiotheria Dasyuromorphia Peramelemorphia Notoryctemorphia Diprotodontia Subclass Placentalia Xenarthra Dermoptera Desmostylia Scandentia Primates Rodentia Lagomorpha Insectivora Chiroptera Pholidota Carnivora Perissodactyla Artiodactyla Cetacea Afrosoricida Macroscelidea Tubulidentata Hyracoidea Proboscidea Sirenia The mammals are the class of vertebrate animals primarily characterized by the presence of mammary...
Orders[1] Magnorder Xenarthra: Cingulata (Armadillos) Pilosa (Sloths, True Anteaters) Magnorder Epitheria: Superorder Afrotheria: Afrosoricida (Tenrecs, etc. ...
Suborders Mysticeti Odontoceti Archaeoceti (extinct) (see text for families) The order Cetacea (IPA: , L. cetus, whale) includes whales, dolphins and porpoises. ...
Families See text The toothed whales (systematic name Odontoceti) form a suborder of the cetaceans. ...
Genera Kogia Physeter The sperm whale family or simply the sperm whales is the collective name given to three species of whale, the Sperm Whale, the Pygmy Sperm Whale and the Dwarf Sperm Whale. ...
Genera Kogia Physeter The sperm whale family or simply the sperm whales is the collective name given to three species of whale, the Sperm Whale, the Pygmy Sperm Whale and the Dwarf Sperm Whale. ...
This article does not cite any references or sources. ...
Henri Marie Ducrotay de Blainville Henri Marie Ducrotay de Blainville (September 12, 1777 - May 1, 1850) was a French zoologist and anatomist. ...
| Jöns Jakob Berzelius, discoverer of protein 1838 was a common year starting on Monday (see link for calendar). ...
Image File history File links Download high resolution version (1357x628, 34 KB) Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1. ...
In biology, a species is one of the basic units of biodiversity. ...
Families See text. ...
Families and genera Kogiidae Gill, 1871 Kogia Physeteridae Gray, 1821 Physeter The sperm whale family or simply the sperm whales is the collective name given to three species of whale, the Sperm Whale, the Pygmy Sperm Whale and the Dwarf Sperm Whale. ...
Taxonomy
There has been debate and differing opinion as to the correct classification of the Pygmy and Dwarf Sperm Whales (see sperm whale family for details). The two were widely considered to be the same species, until 1966, when a scientist at the Smithsonian Institute definitively diagnosed them as separate species.[citation needed] The Pygmy Sperm Whale was first named by Blainville in 1838.[citation needed] Binomial name Kogia sima Owen, 1866 Dwarf Sperm Whale range The Dwarf Sperm Whale (Kogia sima) is one of three species of whale in the sperm whale family. ...
Families and genera Kogiidae Gill, 1871 Kogia Physeteridae Gray, 1821 Physeter The sperm whale family or simply the sperm whales is the collective name given to three species of whale, the Sperm Whale, the Pygmy Sperm Whale and the Dwarf Sperm Whale. ...
The Smithsonian castle, as seen through the garden gate. ...
There are commune or community names that have the name Blainville: (pro. ...
They Like Tacos And Burritos
Physical description Like its giant cousin, the Sperm Whale, the Pygmy Sperm Whale has a spermaceti organ in its forehead (see Sperm Whale for a discussion of its purpose). It also has a sac in its intestines that contains a dark red fluid. The whale will expel this fluid when frightened. Its purpose is believed to be to confuse and disorient predators. Image File history File links No higher resolution available. ...
Image File history File links No higher resolution available. ...
Binomial name Linnaeus, 1758 Sperm Whale range (in blue) The Sperm Whale (Physeter macrocephalus) is the largest of all toothed whales and is the largest toothed animal alive, measuring up to 18 metres (60 ft) long. ...
Spermaceti (from Latin sperma, seed, and cetus, whale) is a wax present in the head cavities of the Sperm Whale (Physeter macrocephalus) and in the blubber of all whales. ...
Binomial name Linnaeus, 1758 Sperm Whale range (in blue) The Sperm Whale (Physeter macrocephalus) is the largest of all toothed whales and is the largest toothed animal alive, measuring up to 18 metres (60 ft) long. ...
The Pygmy Sperm is amongst the smallest of all whales and is not much larger than many dolphins. They are about 1.2 m at birth, growing to about 3.5 m at maturity. Adults weigh about 400 kg. Roughly speaking, the underside is a creamy, occasionally pinkish, colour and the back and sides are a bluish grey. However, there is considerable intermixing between the two colours. The head is large in comparison to body size, given an almost swollen appearance when viewed from the side. The lower jaw is very small and slung low. The blowhole is displaced slightly to the left when viewed from above facing forward. The dorsal fin is very small indeed and hooked; its size is considerably smaller than the Dwarf Sperm Whale's and may be used for diagnostic purposes. The Pygmy Sperm has between 20 and 32 teeth, all of which are set into the lower jaw. There is a false gill behind each eye. Genera See article below. ...
Dorsal fin of an orca A dorsal fin is a fin located on the backs of fishes, whales, dolphins, and porpoises, as well as the (extinct) ichthyosaurs. ...
This whale makes very inconspicious movements. It rises to the surface slowly, with little splash or blow, and will remain there motionless for some time. In Japan the whale was historically known as the "floating whale" because of this. Its dive is equally lacking in grand flourish - it simply drops out of view. The species has a tendency to back away from rather than approach boats. Breaching has been observed, but is not common.
Pygmy Sperms are usually solitary creatures but have been seen in groups of up to six. Primary food sources are squid and crabs. Suborders †Plesioteuthididae (incertae sedis) Myopsina Oegopsina Squid are a large, diverse group of marine cephalopods. ...
Superfamilies Dromiacea Homolodromioidea Dromioidea Homoloidea Eubrachyura Raninoidea Cyclodorippoidea Dorippoidea Calappoidea Leucosioidea Majoidea Hymenosomatoidea Parthenopoidea Retroplumoidea Cancroidea Portunoidea Bythograeoidea Xanthoidea Bellioidea Potamoidea Pseudothelphusoidea Gecarcinucoidea Cryptochiroidea Pinnotheroidea * Ocypodoidea * Grapsoidea * An asterisk (*) marks the crabs included in the clade Thoracotremata. ...
Population and distribution Pygmy Sperm Whales are found in the temperate waters of the Atlantic, Pacific and Indian Oceans. However, they are rarely sighted at sea, so most data comes from stranded animals - making a precise range and migration map difficult. They are believed to prefer off-shore waters. Their status is usually described as rare, but occasional patches of higher density of strandings suggest it may be rather more common than previously supposed. The total population is unknown. The Atlantic Ocean is Earths second-largest ocean, covering approximately one_fifth of its surface. ...
For other meanings of Pacific, see Pacific (disambiguation). ...
Human interaction Pygmy Sperm Whales have never been hunted on a wide scale. Land-based whalers have hunted them from Indonesia, Japan and the Lesser Antilles. Individuals have also been recorded killed in drift nets. Some stranded animals have been found with plastic bags in their stomachs - which may be a cause for concern. It is not known whether these activities are causing long-term damage to the survival of the species. Location of the Lesser Antilles (green) in relation to the rest of the Caribbean Islands of the Lesser Antilles The Lesser Antilles, also known as the Caribbees,[1] are part of the Antilles, which together with the Bahamas and Greater Antilles form the West Indies. ...
References - Cetacean Specialist Group (1996). Kogia breviceps. 2006 IUCN Red List of Threatened Species. IUCN 2006. Retrieved on 12 May 2006. Database entry includes justification for why this species is of least concern
- Pygmy and Dwarf Sperm Whales by Donald F. McAlpine in Encyclopedia of Marine Mammals pp. 1007-1009 ISBN 978-0-12-551340-1
- Whales Dolphins and Porpoises, Mark Carwardine, Dorling Kindersley Handbooks, ISBN 0-7513-2781-6
- National Audubon Society Guide to Marine Mammals of the World, Reeves, Stewart, Clapham and Powell, ISBN 0-375-41141-0
|
Feeds |
Contact