Cascadia Research Collective

Endangered southern resident killer whales would have a much better chance of survival if chinook were in their hunting grounds during winter off the coast of British Columbia, a new study says.

Canadian and American scientists will study why an unusually high number of dead grey whales are washing ashore on the west coast.

Scientists are touting the first sighting of a hybrid between a melon-headed whale and a rough-toothed dolphin in the ocean off Hawaii. But don't call it a "wholphin," they say.