Extinct sea cow found buried beneath Russian beach

The skeleton of a Steller's sea cow, which went extinct in the late 1700s, has been discovered on a Siberian beach. Although its skull and several vertebrae were missing, scientists estimated it would have measured 17 feet while mature adults might have reached 25 feet and weighed 8-10 tonnes. The species is named after Georg Steller, an 18th-century German naturalist.