Dugong and Sea Cow: Dugongidae

The near-hairless dugong and sea cow can be as long as 9.8 feet (3 meters) for the dugong and from 23 to 33 feet (7 to 10 meters) for Steller's sea cow. They have no hind limbs, and the tail is forked, similar to that of a whale. Their front limbs are flipper-like and without nails. Dugongs are found in various colorations of gray and brown, though it is unknown what color the sea cow was. Dugongs can weigh more than 881 pounds (400 kilograms), and scientists estimate that Steller's sea cow weighed more than 9,920 pounds (4,500 kilograms).