Two young California sea lions. The sea lion attacked Tuesday was an adult female, and was taken to a treatment center to be monitored.

Adult female California sea lion Finn was found seizing and stuck in the rocks of Redondo Harbor on Sept. 9. She was rescued and brought to the Marine Mammal Care Center’s hospital for ...

A sea lion believed to have made its way up the Petaluma River was rescued from a shopping center parking lot Saturday and ...

The marine mammals are suffering from domoic acid, a neurotoxin that affects the brain and heart The poisoning event is largely affecting adult female California sea lions.

Adult female California sea lion Finn is released at White Point Beach on Oct. 15 after rehabilitating at the Marine Mammal Care Center in San Pedro, California.

The adult female California sea lion was taken to a treatment center to be monitored, according to the Channel Islands Marine and Wildlife Institute.

SANTA BARBARA, Calif. (AP) — Sea lions are stranding themselves on a long stretch of the California coast and showing signs that they may have been poisoned by a bloom of harmful algae, experts ...

Adult female California sea lion Finn is released at White Point Beach on Oct. 15 after rehabilitating at the Marine Mammal Care Center in San Pedro, California.

Sea lions are stranding on a long stretch of California coast with signs of poisoning by a naturally occurring bloom of harmful algae.