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 ...

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, ...

Whales are a group of mammals that live in oceans. They include some of the largest animals on Earth. The blue whale is the biggest animal that has ever existed. Whales can be found in every ocean, ...

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 ...