Sea otters are the smallest marine mammals, but they have some incredible adaptations to thrive in the ocean. Unlike seals and whales, they don’t have a thick layer of blubber to keep them warm.

They have the densest fur in the animal kingdom – a million hairs per square inch. Sea otters are the smallest marine mammals on earth. They have well rounded teeth adapted for crushing shells ...

FUKUOKA--Only three sea otters remain at aquariums in Japan, and they are now treated like rock stars because of their advancing years. Japan was once home to dozens of the cute mammals.

When sea otters were reintroduced along the coastlines of islands in Southern California and British Columbia, researchers saw kelp forests return to areas that were destroyed by sea urchins.

A sea otter floating above ribbons of kelp is undoubtedly one of nature’s cutest scenes. It’s well known that the marine mammals help make these sea surface ‘pillows’ more abundant, by ...