Add Yahoo as a preferred source to see more of our stories on Google. A wild sea otter in the waters of Seward, Alaska near Kenai Fjords National Park in the Kenai ...

CNN — When sea otters hammer mussel shells against rocks to help open them, they're leaving behind their own archaeological record that can't be compared to any other creature, according to a new ...

Sea otters forage in kelp forests for fish and marine invertebrates. They use a special underarm pouch to carry spare food to the surface. The otters use rocks to smash open hard shells. They have ...