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

A free-diving spearfisherman was suddenly rendered helpless after an unnerving incident with a sea lion off San Diego.

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

From diving into the colorful coral reefs of the Great Barrier Reef to swimming alongside whale sharks in the Maldives, the ...