In a Facebook group called "I love Petaluma," residents posted about a sea lion that has been spotted coughing in the area of Petaluma's Turning Basin and its Float House boat rental since June 18.

He's our 23-year-old male sea lion. And while he's a big boy weighing in at around 550 pounds this summer, he's super fast in the water. In the wild, he could use that speed to catch fish.

The sea lion population has rebounded since 1975 because of the Marine Mammal Protection Act. Under the law, it’s illegal to capture, kill or harass sea lions and other mammals.

A sick sea lion resting on a California beach was kicked in the head and beaten with a large piece of driftwood, prosecutors say. Now, 32-year-old Christopher Hurtado, of Santa Paula, has pleaded ...

This information could help scientists protect critical sea lion habitat, as well as give researchers a new tool for mapping the ocean floor. It has also inspired at least one other biologist to ...

Animal advocates gathered in Venice Beach on Wednesday to celebrate the release of four sea lion pups back into the wild. Upon their release, the young marine mammals made their way toward freedom ...

A wounded sea lion found at Bolsa Chica State Beach this summer died from a gunshot to its back, according to officials who are now offering a $20,000 reward for information about the shooting ...

This is Ronan. She’s a California sea lion and she probably has better rhythm than you. Scientists earlier showed that Ronan, a resident of the Long Marine Laboratory at the University of ...

A sick sea lion resting on a California beach was kicked in the head and beaten with a large piece of driftwood, prosecutors say. Now, 32-year-old Christopher Hurtado, of Santa Paula, has pleaded ...