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

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

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

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

A bike rider who decapitated a dead sea lion over Christmas and rode off with the animal's head in a clear plastic bag was ...

An eyewitness described a suspect seen as around 30 to 40 years old, dressed in all black and riding an e-bike.

Someone cut off the head of a sea lion in Northern California, and authorities are now offering $20,000 for information that helps find the perpetrator. The body of the mutilated animal was found ...

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 ...

A man was arrested Tuesday morning after allegedly beating a sea lion suffering from domoic acid poisoning on Ventura Beach, ...

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

A man was arrested after he was accused of attacking a sick sea lion with a stick, California police say. As officers ...