Sea cow: Manatees look a bit like

Manatees look a bit like walruses or chunky porpoises and are sometimes referred to as sea cows , but they're actually much more closely related to elephants. The sea cow is a group of marine mammals that includes famous creatures like the Dugong and Manatee, many of which are now threatened. Dugongs (Dugong dugon) are the only herbivorous mammal s found in India’s marine ecosystems. Appearance: It is known as the sea cow , but resembles a cross between a seal and a whale, and is distributed through the Indo-Pacific region. Sea cow, ( Hydrodamalis gigas ), very large aquatic mammal, now extinct, that once inhabited nearshore areas of the Komandor Islands in the Bering Sea. Steller’s sea cows were wiped out by hunters in the 18th century less than 30 years after they were first discovered by Arctic explorers.