This application containing the best collection of Sea Otter Sounds for android devices. sounds have been selected very carefully to be a good and fun user experience, we hope you will enjoy using the app and listening to Sea Otter Sounds The sea otter (Enhydra lutris) is a marine mammal native to the coasts of the northern and eastern North Pacific Ocean. Adult sea otters typically weigh between 14 and 45 kg (31 and 99 lb), making them the heaviest members of the weasel family, but among the smallest marine mammals.