Adult female sea otter (Enhydra lutris kenyoni) swimming in Inian Pass, Southeastern Alaska, Pacific Ocean, United States of America, North America

An adult sea otter (Enhydra lutris), feeding on a razor clam in Monterey Bay National Marine Sanctuary, California, United States of America, North America

Mother and pup sea otter (Enhydra lutris), together in Monterey Bay National Marine Sanctuary, California, United States of America, North America

A mother and pup sea otter (Enhydra lutris), in Monterey Bay National Marine Sanctuary, California, United States of America, North America

Eurasian river otter (Lutra lutra). Otters in western Scotland have adapted well to life in a marine environment, though proximity to sources of fresh water is essential. Hebrides, Scotland

Eurasian river otter (Lutra lutra) eating fish. Otters have adapted well to the marine environment but require sources of fresh water to drink and to clean fur. Hebrides, Scotland

Eurasian river otter (Lutra lutra). Otters in western Scotland have adapted well to life in a marine environment, though proximity to sources of fresh water is essential. Hebrides, Scotland

Sea Otter (Enhydra lutris) group swimming in kelp, Southeast Alaska, USA.

Eurasian river otter (Lutra lutra) foraging in and among the seaweed. Otters on Scotland's west coast and islands have adapted well to making a living in the marine environment. Hebrides, Scotland (RR)

Eurasian river otter (Lutra lutra) eating fish. Otters have adapted well to the marine environment but require sources of fresh water to drink and to clean fur. Hebrides, Scotland

Eurasian river otter (Lutra lutra) foraging in and among the seaweed. Otters on Scotland's west coast and islands have adapted well to making a living in the marine environment. Hebrides, Scotland

Eurasian river otter (Lutra lutra) foraging in and among the seaweed. Otters on Scotland's west coast and islands have adapted well to making a living in the marine environment. Hebrides, Scotland

Eurasian river otter (Lutra lutra) in the marine environment to which they have adapted so successfully. Hebrides, Scotland.

Eurasian river otter (Lutra lutra) in the marine environment to which they have adapted so successfully. Hebrides, Scotland.

Eurasian river otter (Lutra lutra). Otters in western Scotland have adapted well to life in a marine environment, though proximity to sources of fresh water is essential. Hebrides, Scotland

Eurasian river otter (Lutra lutra) foraging in and among the seaweed. Otters on Scotland's west coast and islands have adapted well to making a living in the marine environment. Hebrides, Scotland

Pair of Eurasian river otters (Lutra lutra) foraging in and among the seaweed. Otters on Scotland's west coast and islands have adapted well to making a living in the marine environment. Hebrides, Scotland

Eurasian river otter (Lutra lutra) eating fish. Otters in western Scotland have adapted well to life in a marine environment, though proximity to sources of fresh water is essential. Hebrides, Scotland

Eurasian river otter (Lutra lutra). Otters in western Scotland have adapted well to life in a marine environment, though proximity to sources of fresh water is essential. Hebrides, Scotland

Eurasian river otter (Lutra lutra). Otters in western Scotland have adapted well to life in a marine environment, though proximity to sources of fresh water is essential. Hebrides, Scotland

Pair of Eurasian river otters (Lutra lutra) foraging in and among the seaweed. Otters on Scotland's west coast and islands have adapted well to making a living in the marine environment. Hebrides, Scotland

Eurasian river otter (Lutra lutra) foraging in and among the seaweed. Otters on Scotland's west coast and islands have adapted well to making a living in the marine environment. Hebrides, Scotland

Adult sea otter (Enhydra lutris kenyoni) in Idaho Inlet on the north end of Chichagof Island, southeastern Alaska, USA, Pacific Ocean

Eurasian river otter (Lutra lutra) foraging in and among the seaweed. Otters on Scotland's west coast and islands have adapted well to making a living in the marine environment. Hebrides, Scotland

Sea Otter at Monterey Bay Aquarium; Monterey, California.

Sea Otter at Monterey Bay Aquarium; Monterey, California.

Sea Otter (Enhydra Lutris), Seward Small Boat Harbor, South-Central Alaska, Seward, Alaska, United States Of America

Sea Otter (Enhydra Lutris) Swims In The Small Boat Harbor, Seward, Alaska, United States Of America