This image was taken at the Kenai Fjords,National Park, Alaska.
The sea otter (Enhydra lutris) is a marine mammal native to the coasts of the northern and eastern Pacific Ocean. Adult sea otters typically weigh between 30 to 100 lb, they are the heaviest members of the weasel family, but also the smallest marine mammals. Unlike most marine mammals, the sea otter's primary form of insulation is an exceptionally thick coat of fur, the densest in the animal kingdom.The sea otter inhabits offshore environments where it dives to the sea floor to forage. It preys mostly upon marine invertebrates such as sea urchins, various molluscs and crustaceans, and some species of fish.
its foraging and eating habits are noteworthy in several respects. First, its use of rocks to dislodge prey and to open shells makes it one of the few mammal species to use tools.
Because of their fur, they were nearly hunted to extinction in the 1700's - early 1900's. They are now protected by international treaties.