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Sowerby's beaked whale!<-- This template has to be "warmed up" before it can be used, for some reason --> Sowerby's beaked whale Sowerby's beaked whale (on Faroese stamp) Size comparison against an average human Conservation status Vulnerable (NatureServe) Scientific classification [ e ] Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Cetacea Family: Ziphiidae Genus: Mesoplodon Species: M. bidens Sowerby, 1804 Sowerby's beaked whale (Mesoplodon bidens), also known as the North Atlantic/North Sea beaked whale, was the first beaked whale to be described. Its name, bidens, derives from the two teeth present in the jaw, now known to be a very common feature among the genus. Contents 1 Physical description 2 Population and distribution 3 Behaviour 4 Conservation 5 Notes 6 References 7 External links // Physical description Profile of an adult female Sowerby's beaked whale has a typical body shape for the genus, and is mainly distinguished by the male's dual teeth positioned far back in the mouth. The whale's beak is moderately long, and the melon is slightly convex. The colouration pattern is a grey with light countershading on the bottom, and frequently has cookie cutter shark bites and scars from teeth (in males). The whale reaches 5 metres (16 ft) in females and 5.5 metres (18 ft) in males, with a weight of 1000-1300 kilograms (2200-2900 lb). The gestation period lasts for 12 months and the young are born at a length of 2.4 to 2.7 metres (8 to 9 ft) with a weight of around 185 kilograms (400 lb). Population and distribution Sowerby's beaked whale ranges from Nantucket to Labrador in the Western Atlantic and from Madeira to the Norwegian Sea in the Eastern Atlantic. They typically range in waters 200 to 1,500 metres (650 to 5,000 ft) deep. No population estimates have been made. On January 10, 2009, a female Sowerby's beaked whale was found at the port of Fethiye on the Aegean coast of Turkey, far away from her natural habitat. The whale was successfully saved and released back to the open sea.[1] In August of the same year, a Sowerby's beaked whale was found on the beach at Blakeney Point in Norfolk, England by holiday makers including a Mr. A. Davies and associates. The tide was rapidly receding, and being watched by a Seal Tour Boat, they managed to return the whale to the sea using a stretcher used for injured seals. All worked extremely hard, and their work paid off as the whale was returned safely out to sea.[citation needed] Behaviour Sowerby’s beaked whales are reclusive creatures that stay away from ships and are rarely sighted. The whales are occasionally in groups of 8 to 10 individuals (males, females, and calves) and have been known to strand in groups as well. They are believed to primarily feed on squid and molluscs, but cod has also been found in their stomachs. They have been known to dive down at times approaching 30 minutes. Conservation Skull of Sowerby's beaked whale. The species has been hunted infrequently by Norwegians, but such practices have long since been abandoned. There are some deaths due to entanglement in fishing gear, but it is unlikely to be very damaging to the species. Notes ^ Hürriyet daily newspaper: "Balinaymış". Published on January 12, 2009. Retrieved on January 12, 2009. References Cetaceans portal Cetacean Specialist Group (1996). Mesoplodon bidens. 2006. IUCN Red List of Threatened Species. IUCN 2006. Retrieved on 12 May 2006. Encyclopedia of Marine Mammals. Edited by William F. Perrin, Bernd Wursig, and J.G.M Thewissen. Academic Press, 2002. ISBN 0-12-551340-2 Sea Mammals of the World. Written by Randall R. Reeves, Brent S. Steward, Phillip J. Clapham, and James A. Owell. A & C Black, London, 2002. ISBN 0-7136-6334-0 External links Cetaceans of the World CMS Sowerby's beaked whale movie, text in French Whale & Dolphin Conservation Society (WDCS) v • d • e Extant Cetacea species Kingdom Animalia · Phylum Chordata · Class Mammalia · Infraclass Eutheria · Superorder Laurasiatheria · (unranked) Cetartiodactyla · (unranked) Whippomorpha   Suborder Mysticeti (Baleen whales) Balaenidae Balaena Bowhead Whale (B. mysticetus) Eubalaena (Right whales) Southern Right Whale (E. australis) · North Atlantic Right Whale (E. glacialis) · North Pacific Right Whale (E. japonica) Balaenopteridae (Rorquals) Balaenoptera Common Minke Whale (B. acutorostrata) · Antarctic Minke Whale (B. bonaerensis) · Sei Whale (B. borealis) · Bryde's Whale (B. brydei) · Pygmy Bryde's Whale (B. edeni) · Blue Whale (B. musculus) · B. omurai · Fin Whale (B. physalus) Megaptera Humpback Whale (M. novaeangliae) Eschrichtiidae Eschrichtius Gray Whale (E. robustus) Neobalaenidae Caperea Pygmy Right Whale (C. marginata)   Suborder Odontoceti (Toothed whales) (cont. below) Delphinidae (Oceanic dolphins) Cephalorhynchus Commerson's Dolphin (C. commersonii) · Chilean Dolphin (C. eutropia) · Haviside's Dolphin (C. heavisidii) · Hector's Dolphin (C. hectori) Delphinus Long-beaked Common Dolphin (D. capensis) · Short-beaked Common Dolphin (D. delphis) Feresa Pygmy Killer Whale (F. attenuata) Globicephala (Pilot whales) Short-finned Pilot Whale (G. macrorhynchus) · Long-finned Pilot Whale (G. melas) Grampus Risso's Dolphin (G. griseus) Lagenodelphis Fraser's Dolphin (L. hosei) Lagenorhynchus Atlantic White-sided Dolphin (L. acutus) · White-beaked Dolphin (L. albirostris) · Peale's Dolphin (L. australis) · Hourglass Dolphin (L. cruciger) · Pacific White-sided Dolphin (L. obliquidens) · Dusky Dolphin (L. obscurus) Lissodelphis (Right whale dolphins) Northern Right Whale Dolphin (L. borealis) · Southern Right Whale Dolphin (L. peronii) Orcaella Irrawaddy Dolphin (O. brevirostris) · Australian Snubfin Dolphin (O. heinsohni) Orcinus Killer Whale (O. orca) Peponocephala Melon-headed Whale (P. electra) Pseudorca False Killer Whale (P. crassidens) Sotalia Tucuxi (S. fluviatilis) · Costero (S. guianensis) Sousa Pacific Humpback Dolphin (S. chinensis) · Indian Humpback Dolphin (S. plumbea) · Atlantic Humpback Dolphin (S. teuszii) Stenella Pantropical Spotted Dolphin (S. attenuata) · Clymene Dolphin (S. clymene) · Striped Dolphin (S. coeruleoalba) · Atlantic Spotted Dolphin (S. frontalis) · Spinner Dolphin (S. longirostris) Steno Rough-toothed Dolphin (S. bredanensis) Tursiops Indo-Pacific Bottlenose Dolphin (T. aduncus) · Common Bottlenose Dolphin (T. truncatus)   Suborder Odontoceti (Toothed whales) (cont. above) Monodontidae Delphinapterus Beluga (D. leucas) Monodon Narwhal (M. monoceros) Phocoenidae (Porpoises) Neophocaena Finless Porpoise (N. phocaeniodes) Phocoena Spectacled Porpoise (P. dioptrica) · Harbor Porpoise (P. phocoena) · Vaquita (P. sinus) · Burmeister's Porpoise (P. spinipinnis) Phocoenoides Dall's Porpoise (P. dalli) Physeteridae Physeter Sperm Whale (P. macrocephalus) Kogiidae Kogia Pygmy sperm whale (K. breviceps) · Dwarf sperm whale (K. simus) Iniidae Inia Amazon River Dolphin (I. geoffrensis) Lipotidae Lipotes Baiji (L. vexillifer) Platanistidae Platanista Ganges and Indus River Dolphin (P. gangetica) Pontoporiidae Pontoporia La Plata Dolphin (P. blainvillei) Ziphiidae (Beaked whales) Berardius Arnoux's Beaked Whale (B. arnuxii) · Baird's Beaked Whale (B. bairdii) Hyperoodon Northern Bottlenose Whale (H. ampullatus) · Southern Bottlenose Whale (H. planifrons) Indopacetus Tropical Bottlenose Whale (I. pacificus) Mesoplodon (Mesoplodont whales) Sowerby's Beaked Whale (M. bidens) · Andrew's Beaked Whale (M. bowdoini) · Hubbs' Beaked Whale (M. carlhubbsi) · Blainville's Beaked Whale (M. densirostris) · Gervais' Beaked Whale (M. europaeus) · Ginkgo-toothed Beaked Whale (M. ginkgodens) · Gray's Beaked Whale (M. grayi) · Hector's Beaked Whale (M. hectori) · Strap-toothed Whale (M. layardii) · True's Beaked Whale (M. mirus) · Perrin's Beaked Whale (M. perrini) · Pygmy Beaked Whale (M. peruvianus) · Stejneger's Beaked Whale (M. stejnegeri) · Spade-toothed Whale (M. traversii) Tasmacetus Shepherd's Beaked Whale (T. sheperdi) Ziphius Cuvier's Beaked Whale (Z. cavirostris)