A sea lion infected by a toxic algae bloom became aggressive at a Southern California beach this week, chasing surfers out of ...

Some surfers in Newport Beach had to cut and run after they were chased by a sea lion that may have been suffering from the ...

It’s a sunny day on California’s iconic coastline. Suddenly, a normally playful sea lion lunges aggressively at a surfer, ...

The March incident highlights an ongoing deadly outbreak as a neurotoxin ravages wildlife in Southern California.

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

National Geographic's upcoming docuseries, 'Secrets of the Penguins,' captured a shocking encounter between a mother rockhopper penguin and giant, hungry sea lion, and PEOPLE has a first look at the f ...

In a remarkable display of maternal courage, a rockhopper penguin was caught on camera defending her chicks against a massive ...

Along some 70 miles of Southern California coastline, usually curious and playful sea lions are attacking humans in the water ...

A wave of sea lions off the coast of Southern California have been sickened by an algae-produced toxin that makes them aggressive.

Shocking video shows an aggressive sea lion actively going after people in the water and on shore. Experts say a toxic algae ...

Shocking video shows an aggressive sea lion actively going after people in the water and on shore. Experts say a toxic algae ...

They were flippin’ poisoned! The horde of “demonic” sea lions that attacked people off the California coast in recent weeks ...