Have you seen Chonkers? The roughly 2,000-pound Steller sea lion became an internet sensation during his extended stay on the ...

The massive sea lion known as Chonkers hasn't been seen in days, leading to confusion - including at the Chronicle.

There's now a new way to celebrate the Bay Area's newest celebrity, Chonkers. The Marine Mammal Center is now selling ...

Scientists and tourists alike have been amazed by the massive sea lion hanging out on a San Francisco pier. The species can ...

The Marine Mammal Center is now taking pre-orders for a special plushie inspired by San Francisco’s famous Steller sea lion ...

African lion Shera rests on a bed of hay in her indoor enclosure Jan. 26 at the Smithsonian’s National Zoo’s Great Cats ...

Chonkers’ the sea lion is going viral for his huge size in comparison to his fellow marine mammals on the San Francisco coast ...

The U.S. Navy's Marine Mammal Program in San Diego trains bottlenose dolphins and California sea lions to find underwater ...

There's a moment every hiker dreads — that feeling of being watched from the rocks above. In mountain lion country, that ...

Across North America, agencies responsible for the conservation and management of native mammals, including large carnivores, ...