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, ...

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 ...

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 ...

WWF is supporting a new project to track narwhals, Arctic whales best known for the long tusk that projects forward from their faces. Canada - WWF is supporting a new project to track narwhals, Arctic ...

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 ...

NOAA Fisheries / KATY LAVECK FOSTER A group of killer whales that live in the coastal waters of Oregon and other parts of the Pacific Northwest may soon be listed under the Oregon Endangered Species ...