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.

In the Humboldt Current, off the coast of Chile, an enigmatic pod of orcas has been seen tearing apart unexpected prey. What's even more surprising is the way the orcas then divvied up and shared ...

A little-known population of orcas living off the coast of Chile has been seen hunting and eating dusky dolphins for the first time. The behavior may offer insights into the lives and diets of all ...

Orcas are known to have an extremely varied diet, with different populations having a preference for unique species of prey, including seals, turtles, seabirds and fish. Through their observations, ...

Jess Thomson is a Newsweek Science Reporter based in London UK. Her focus is reporting on science, technology and healthcare. She has covered weird animal behavior, space news and the impacts of ...

Orcas are the oceans’ apex predator, even outranking the great white shark, but their hunting behaviors are still not fully understood by scientists. Robert Pittman / NOAA via Wikimedia Commons For ...

No one knows why an orca has been visiting the Bay of Fundy for the past 20 years with a pod of dolphins, but one thing is ...

OCEANSIDE, Calif. (KGTV) - Whale watchers enjoyed a rare encounter off the Southern California coast Monday: four orcas teaming up to prey on dolphins. “It’s very, very rare,” said Oceanside Whale ...

Orcas, also known as killer whales, hunt together like wolves. Different groups of killer whales, called pods, specialize in certain types of hunting and the type of food they prefer. Some like fish, ...

Experts say the whales seem to learn to play with boats from a young age. "Believe me: if they wanted to sink the boats, they ...