The head is small and flat, the neck is long and thick, the tail is thick, and the hair grows thinner at the end.Also, with special muscles, close your ears and nostrils to prevent water from entering.There are flexible webbed feet between the toes, so you can swim fast.Otters, like beavers and mice, have long, rough barlike protective hair that is covered by short, dense inner hairs.The otters have the air is sokteol the skin always remains dry.Some species have a layer of fat under their skin to block the cold.otters' hair ranges from brownish gray to dark brown.Otters play with their feet on objects such as stones and small shells.Also, some species that live in Africa and Asia do not see much development in their toes. You can use your toes like your fingers.Sea otters are living in the water in water eat seashells.A otter has all the claws of a species. Even a species called a minbaltop otter has short claws on its hind feet, three toes in the middle.Sea otters eat crab fish. Sometimes I catch fish as fast as a trout.They usually eat slow fish. They also eat frog guns, shellfish, snail snakes.Sometimes I eat water birds. They are active all year round and they usually move at night rather than during the day in places where people hunt a lot.Sea otters hunt alone, but sometimes they go out to eat on a family basis.otters spend a lot of time playing.They play with each other and slide on steep advance slopes or on icy banks of rivers.Sea otters dig oysters on river banks or under rocks that pop out to make homes or use homes abandoned by other animals.A baby gives birth to two or three cubs a litter.A baby born blind can swim after a few months.People hunted a lot for leather and endangered species such as large otters.