Scientists found shark teeth inside fossil whale skulls, revealing how sharks fed on whales millions of years ago.

A gray whale that was found dead in the San Francisco Bay this week had injuries consistent with a vessel strike, officials ...

A gray whale carcass found floating in San Francisco Bay this week was likely killed in a ship strike, the Marine Mammal Center announced Thursday.

Watch the shocking moment a shark egg hatches right before your eyes. Intense, fascinating, and totally unexpected from start to finish!

Whale sharks are the largest species of fish on the planet. They are among the largest animals to have ever lived. Only blue whales, sperm whales, and humpback whales (all mammals) are larger. The ...