SeaWorld San Diego's rescue team released this California sea lion back into the Pacific Ocean after rehabilitation. Video: ...

Someone cut off the head of a sea lion in Northern California and rode off with it in a bag. Authorities are now offering $20 ...

Sea lions and dolphins can be seen along LA coastlines from Long Beach to Malibu as toxic algal bloom continues to increase.

SeaWorld San Diego says rescuers are currently treating nine sea lions that were poisoned with domoic acid; one of the marine ...

After a Doran Regional Park staff member discovered a beheaded sea lion, authorities are now investigating the incident.

As a harmful algae bloom continues to spread along California’s coastline, more animals are falling ill in San Diego.

NOAA officials are looking for a suspect seen using a black 8-inch knife to remove the deceased sea lion's head.

Dolphins, sea lions and seabirds are being found sick along beaches throughout Southern California, poisoned by an ...

LOS ANGELES – A bike rider who decapitated a dead sea lion over Christmas and rode off with the head in a clear plastic bag ...

Federal investigators with the National Oceanic and Atmospheric Administration are offering a reward of up to $20,000 for information leading to the arrest and prosecution of a person seen ...

"Lifeguards determined that a free diver had been bitten by a marine mammal (sea lion or harbor seal)," the department says.

The National Oceanic and Atmospheric Administration is offering up to $20,000 for information that leads to the arrest of a ...