Orcas were spotted hunting dolphins off the coast of San Diego, in a graphic new drone video. This behavior is normal, especially since this pod of killer whales specializes in eating dolphins.

This is the moment an orca was spotted for the first time hunting with Pacific white-sided dolphins. New research has found that killer whales tag-team with dolphins to hunt salmon. The two marine ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. It was an orca ...

A pod of Pacific white-sided dolphins off the coast of British Columbia have been observed cooperating with orcas, a traditional enemy that’s better known for taking out great white sharks than ...

With all the splashing, it was hard to tell what was happening under water. As the orcas surfaced to take a breath, dolphins were darting around their heads, but the water was so murky that the ...

Add Yahoo as a preferred source to see more of our stories on Google. A pod of Northern Resident killer whales travels together. - University of British Columbia (A.Trites), Dalhousie University (S.