What is America's largest sea cave? This particular attraction has a lot more going for it than size, as sea lions have made ...

The clip of the rockhopper mom facing off with a giant sea lion comes from National Geographic's upcoming docuseries, 'Secrets of the Penguins' Kelli Bender is the Pets Editor at PEOPLE.

An aggressive sea lion sent surfers running this week after it repeatedly went after them, even coming onto the beach, video of the incident showed. The sea lion was suffering from severe domoic ...

It is the largest she’s ever seen geographically, and just as they thought it was slowing down, the calls of dolphin strandings and sickly sea lions started to ramp up again this week.

Domoic acid toxicosis has been found in California Sea Lions along the Oregon coast. The toxin can cause the sea lions to ...

Public safety officials have been warning beachgoers to stay away from animals found stranded on the beach because they can become aggressive.