This adorable sea lion has to eat five to eight percent of its body weight every day to stay healthy and hydrated. Over the ...

A Kemp's ridley sea turtle swims into the ocean after being released by New England Aquarium biologists in West Dennis, ...

Quick Take Scientists in California recently detected the first cases of H5N1 virus, avian influenza, in the northern ...

Patrick Robinson, a biologist and director of the UC Santa Cruz Año Nuevo Natural Reserve, said that about 47 elephant seals ...

A hulking Steller sea lion turned San Francisco's Pier 39 into an instant wildlife spectacle yesterday, hauling out on K-Dock and drawing a steady stream of cameras and gawkers. With its pale, blocky ...

Sea otters are North America’s smallest marine mammal, weighing just 30 to 100 pounds, but their appetites are huge. They burn calories at three times the rate expected for their size, chomping on ...

When a sea lion is found stranded anywhere between Long Beach and Malibu, chances are a volunteer with the Marine Mammal Care Center in San Pedro will play an important role in its rescue. The ...

After H5N1 bird flu was detected in elephant seals gathered at Año Nuevo State Park, other marine mammals have also succumbed, including a sea otter and sea lion. So far, only animals in San Mateo ...

New Jersey’s marine mammals are in the crosshairs. Already struggling under multiple assaults, they are facing another blow. Recent federal budget cuts and rule changes promise to dismantle critical ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Wildlife officials are warning the public of ...

An olive ridley sea turtle, a species of the sea turtle superfamily. Credit: Thierry Caro/Wikipedia More than three-quarters of marine mammal and sea turtle populations have significantly increased ...