The sea Otter is perhaps the best known otters. When you think of an otter, most probably the first thing that comes to your mind is the cute, cuddly face of the Southern Sea Otter. There are, in fact, two kinds of Sea Otters, Southern Sea Otters, which live more to the south than Alaskan Sea Otters. Other than the distinction in size and habitat, they are very much alike.

Sea Otters are unique marine mammals in that they use tools such as rocks to open their prey such as the shells of abalone. These social otters float in rafts in the Pacific Ocean just offshore. They have extraordinarily dense fur to keep them warm and are the heaviest otter species.