What is Steller's sea cow?
{{Taxobox | name = Steller's sea cow | status = EX | status_system = iucn3.1 | extinct = 1768 | image = | image_width = 250px | regnum = [[Animal]]ia | phylum = [[Chordata]] | classis = [[Mammal]]ia | ordo = [[Sirenia]] | familia = [[Dugongidae]] | subfamilia = †'''Hydrodamalinae''' | genus = †'''''Hydrodamalis''''' | binomial = ''Hydrodamalis gigas''}} '''Steller's sea cow''' (''Hydrodamalis gigas'') is an extinct aquatic [[mammal]]. It is a member of the [[order (biology)|order]] [[Sirenia]], which today consists of [[dugong]]s and [[manatee]]s. Discovered in 1741, Steller's sea cow weighed about 10 tonnes. It fed on [[kelp]], and lived in shallow waters around the [[Bering Sea]]. Hunted relentlessly for their [[meat]], they died out 27 years after their discovery. The reduction in the kelp supply may also have contributed to their extinction. {{-}} {{biology-stub}} [[Category:Sirenia]]