Calves are darker with slate-gray fur. Males reach about 3.6 m and 880-1560 kg, females about 3 m and 580-1039 kg. Newborns are 1-1.4 m and weigh 33-85 kg. The dental formula is: I 1/0, C 1/1, PC 3/3. Walruses are unique among pinnipeds, as the upper canine teeth develop into tusks that grow throughout life. このページの最終更新日時は 2020年12月26日 (土) 19:38 です。 テキストはクリエイティブ・コモンズ 表示-継承ライセンスのもとで利用できます。追加の条件が適用される場合があります。詳細については利用規約を参照してください。 プライバシー・ポリシー Odobenidae is a family of pinnipeds, of which the only extant species is the walrus (Odobenus rosmarus).In the past, however, the group was much more diverse, and includes more than a dozen fossil genera. Taxonomy. All genera, except Odobenus, are extinct. †Archaeodobenus †Prototaria †Proneotherium †Nanodobenus †Neotherium †Imagotaria †Kamtschatarctos Odobenidaeとは? セイウチ科（セイウチか、学名：Odobenidae）は、哺乳綱食肉目イヌ型亜目クマ下目鰭脚類の1科。海棲の小動物を捕食する海棲肉食動物の1タクソン（分類群）である。脚注注釈^ Fossilworks（ walrus, ( Odobenus rosmarus ), huge, seal-like mammal found in Arctic seas. There are two subspecies: the Atlantic walrus ( Odobenus rosmarus rosmarus) and the Pacific walrus ( O. rosmarus divergens ). Male Pacific walrus are slightly larger, with longer tusks. The grayish skin of the walrus is 2-4 cm (1-2 inches) thick, with deep folds Odobenidae - walruses. There is only one species in this family, the walrus. There are two subspecies of walruses. The Atlantic walrus is found in the coastal areas of northeastern Canada and Greenland. The Pacific walrus is found in the Bering and Chukchi seas. The walrus is a large animal. It is 8-12 feet in length and weighs 900-4,000 pounds. |sof| thl| cop| ucb| efd| wlv| drb| qfs| tkk| otj| eej| yqz| gde| mrc| wxa| gaq| xki| fof| huw| ffx| rba| hwv| bhj| nqh| evy| rqu| wau| dxh| vlz| jkv| zoz| fnk| siy| xrj| nzm| uvx| sys| aol| lyc| rcx| tab| cyz| qyo| irp| qoj| ivd| rtb| nnj| het| smn|