By Sara Tan
Feb 01, 2013
4. STELLAR'S SEA COW
Former Habitat: Bering Island
How They Came To Be Extinct: After being discovered by a Russian expedition in 1741, the Steller's Sea Cow was hunted for its meat at over seven times the sustainable limit.
Last Year Seen: The mammal became extinct in 1768.
Sad to see all these incredible animals gone like the tasmanian tiger. :(