Unlike river otters, marine otters aren't great at regulating their body temperature. To retain heat they have to boost their ...

Sea otters have powerful teeth and even more powerful bites – an estimated 615 pounds of force. That’s about as much as a ...

Unlike most marine mammals, sea otters are primarily insulated by fur, not blubber. In fact they have the densest fur in the animal kingdom. Sadly that thick, resplendent coat has also given otters ...

Although some sea otters were born in captivity in Japan, most of them did not live very long. At Marine World Uminonakamichi in Fukuoka, nine pups were born, but six died within a few weeks to a ...

Adorably fuzzy sea otters aren’t just cute. The marine mammals serve a crucial role, helping to restore the giant kelp forests they rely on by removing their top predators, the sea urchins.

Keep reading to learn why this mother’s attentiveness is so important. Sea otters (Enhydra lutris) are marine mammals, which means they depend on the ocean ecosystem to survive. The southern sea otter ...

Wild sea otters are no longer such a rare sight along the eastern coast of Hokkaido, Japan’s northernmost main island. Experts reckon there are now more than 50 of the endangered marine ...