The first dissection of a spade-toothed whale, a type of beaked whale, was completed last week after a painstaking examination at a research center near the New Zealand city of Dunedin ...

Killer whales are known for being intelligent, which makes them powerful hunters. Now, new research shows how they take down one of the planet's largest animals. NPR's Lauren Sommer has more.

A new marine predator has emerged that challenges the dominance of the mighty whale sharks in the ocean. These are the orcas, popularly known as killer whales. Killer whales typically eat marine ...