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Eschrichtiidae or the gray whales is a family of baleen whale (Parvorder Mysticeti) with a single extant species, the gray whale (Eschrichtius robustus), as well as four described fossil genera: Archaeschrichtius (), Glaucobalaena and Eschrichtioides from Italy, [1] [2] and Gricetoides from the Pliocene of North Carolina. [3]
Eschrichtius is a genus of baleen whale containing two species: the gray whale (E. robustus) and the extinct Akishima whale (E. akishimaensis). [2] References
The gray whale (Eschrichtius robustus), [1] also known as the grey whale, [5] is a baleen whale that migrates between feeding and breeding grounds yearly. It reaches a length of 14.9 meters (49 ft), a weight of up to 41 tonnes (90,000 lb) and lives between 55 and 70 years, although one female was estimated to be 75–80 years of age.
The pygmy right whale shares several characteristics with the right whales, with the exception of having a dorsal fin. Also, pygmy right whales' heads are no more than one quarter the size of their bodies, whereas the right whales' heads are about one-third the size of their bodies. [11] The pygmy right whale is the only extant member of its ...
The bones were first found in 1961 by a father and son, Masato and Yoshio Tajima, in a riverbed in Akishima, Tokyo, lending it the nickname of the Akishima whale. [ 1 ] [ 2 ] It was prepared by locals, under the mentorship of Hiroshi Ozaki, and subsequently put into storage at the National Museum of Nature and Science until it was transferred ...
Whales are fully aquatic, open-ocean animals: they can feed, mate, give birth, suckle and raise their young at sea. Whales range in size from the 2.6 metres (8.5 ft) and 135 kilograms (298 lb) dwarf sperm whale to the 29.9 metres (98 ft) and 190 tonnes (210 short tons) blue whale, which is the
Pond animal Pamital ravine, Canary Islands: Cadborosaurus [4] Caddy Sea animal Pacific Coast of North America Champ [5] Champy Lake monster Lake Champlain, North America Cryptid Whales [6] [7] Giglioli's Whale, Rhinoceros dolphin, High-finned sperm whale, Alula whale, Unidentified beaked whales Sea animal Pacific Ocean, Atlantic Ocean, Indian Ocean
The order Artiodactyla consists of 349 extant species belonging to 132 genera. This does not include hybrid species or extinct prehistoric species. Modern molecular studies indicate that the 132 genera can be grouped into 23 families; these families are grouped into named suborders and many are further grouped into named clades, and some of these families are subdivided into named subfamilies.