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Steller's Sea Cow

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Steller's Sea Cow
Conservation status

Extinct  (1768) (IUCN 3.1)
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Sirenia
Family: Dugongidae
Subfamily: Hydrodamalinae
Palmer, 1895
Genus: Hydrodamalis
Retzius, 1794
Species: H. gigas
Binomial name
Hydrodamalis gigas
(Zimmermann, 1780)

Steller's sea cow (Hydrodamalis gigas) is a extinct mammal are member of the order Sirenia (today consisting of dugongs and manatees) discovered in 1741. They weighed approximately 10 tonnes, fed on kelp, and lived in shallow waters around the Bering Sea. Hunted relentlessly for their meat, they died out within 27 years of their discovery. The reduction in their kelp food supply may also have contributed to their extinction.