A teenage girl and junior lifeguard candidate was attacked and bitten in the arm by an aggressive sea lion during a tryout in Long Beach on Sunday, March 30.

Hundreds of sea lions have died amid a toxic algae bloom, with some animals becoming dangerous and acting erratically.

In recent weeks, hundreds of sea lions, dolphins and other animals have turned up in the sand dead or seriously ill, alarming rescuers and beachgoers alike.

A common neurotoxin produced by algae blooms is making California sea lions more aggressive. Here’s why it has the power to change behavior—and the danger it poses.

Sea lions on the California coast are displaying strange behavior likely due to a harmful algae bloom impacting the region, according to marine researchers.

Sea lions, dolphins and birds are sick and dying because of a toxic algae bloom in Southern California—and animal care organizations are overwhelmed by the scale

A 15-year-old Long Beach girl is still recovering from a sea lion attack that happened while she was swimming over the weekend.

The California sea lion was picked up off a street near beach in Carlsbad. Officials say it may be a case of domoic acid poisoning caused by an algae bloom.