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, ...

Scientists have discovered an entirely new species of ancient whale that existed 35 million years ago—and it could provide clues to how whales today evolved to swim. Most protocetids are thought to ...

Scientists made an incredible discovery last year: a small, "unique" group of baleen whales in the Gulf of Mexico that make up an entirely new species. The whales — up to 60,000 pounds each — are ...

Avoiding predators is one of the most important jobs for many members of the animal world. Even ocean giants like baleen ...

SEATTLE — A new report from the National Marine Fisheries Service has distinguished two killer whale species in the North Pacific Ocean areas. While killer whale experts and the federal government ...

During a special research flight on Monday, the New England Aquarium aerial survey team spotted more than 100 whales of several species in Massachusetts Bay, according to a release by the aquarium. Of ...

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 ...

Researchers believe they have found a previously unknown species of beaked whale in waters off Mexico’s western coast. If confirmed, the new species would mark a significant discovery among giant ...

The world's most endangered large whale species is even closer to extinction than researchers previously thought. The North Atlantic Right Whale species is in a "crisis," NOAA says, with only a few ...

New research finds some baleen whale species call at such deep frequencies that they're completely undetectable by killer whales, which cannot hear sounds below 100 hertz. These also tend to be the ...

The decline of an endangered species of whale slowed last year, as it lost about 2% of its population, but scientists warn the animal still faces existential threats and is losing breeding females too ...