Scientists say they discovered that two well-known types of killer whales in the North Pacific Ocean are actually two separate species and not just different races. In a study published Wednesday, ...

More than 150 years ago, a San Francisco whaler noticed something about killer whales that scientists may be about to formally recognize — at least in name. Charles Melville Scammon submitted a ...

Two years ago, scientists announced they had discovered a new species in the Gulf of Mexico: Rice's whale, which they called one of the rarest whales on the planet. The video above is from a previous ...

Populations of northern bottlenose whales (Hyperoodon ampullatus), playful animals that resemble large dolphins, stretch ...

Killer whales are the only natural predator of baleen whales — those that have “baleen” in their mouths to sieve their plankton diet from the water. More solitary than toothed whales, baleen whales ...

When University of Southern Denmark whale researcher Olga Filatova set off on her first field trip in 2000, she spent five ...

Tests on a tissue sample confirm a researchers aboard a vessel near Baja California were they first to observe the species alive ...

A study of hundreds of specimens from European archaeological digs found two species of whales that are no longer present in the continent’s waters. By Kate Golembiewski Industrial-scale whaling in ...

Nowhere in the ocean is now left untouched by a type of "forever chemicals" called "per- and polyfluoroalkyl substances," ...