The Alaska SeaLife center celebrates Pilot the Steller sea lion's 16th birthday with an adorable 'driver's license' ...

A 400-pound adult sea lion is recovering after it was found with a knife in its face in Santa Barbara County, California. The Channel Islands Marine and Wildlife Institute, a non-profit that works ...

The big day finally arrived for two California sea lion pups to return to the ocean after being found malnourished as ...

Sea lions experiencing seizures or sickness due to an ongoing bloom of toxic algae have bitten or behaved aggressively toward beachgoers across Southern California, according to experts.

After the longest toxic algal bloom on record off the southern California coast, marine mammal researchers are investigating how sea lions were affected, and releasing the last few back into the wild.

Local resident Joe Noriel is accustomed to spotting various aquatic birds and animals while kayaking on the Petaluma River.

A sick California sea lion with possible domoic acid poisoning is rescued in Santa Barbara, Calif. David Swanson/AFP/Getty "These animals are reacting to the fact that they are sick," Warner said.

Thankfully, the knife missed all vital structures, and the wound is expected to heal on its own, the organization said. It’s not known how the sea lion was stabbed, or by whom. Channel Islands Harbor ...

La Jolla's thriving sea lion population is a delight for tourists and a headache for some locals. Other coastal communities may face a similar problem soon.

California sea lions are a success story of 1972’s Marine Mammal Protection Act. In the late 1920s, no more than 1,500 sea lions were counted on the California coast.

A surge of sick sea lions suffering from domoic acid poisoning has moved into Los Angeles County. It’s believed to be connected to another harmful algal bloom along the Ventura, Santa Barbara ...

Federal law says to stay at least 50 yards away from sea lions, but since the beaches in La Jolla Cove are so small, experts advise a distance of 20 to 30 feet, a guideline that goes largely unheeded.