Orcas have been spotted hunting down an unexpected dinner off the coast of Chile in a particularly brutal way. The matriarch of this orca pod was seen flinging a dusky dolphin into the air during the ...

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 ...

While orcas, also known as "killer whales," are a common sight in the northeast Pacific Ocean, they’re rarely detected in the northwest Atlantic Ocean, where little is understood about pods that swim ...

The owner of a San Diego whale-watching company this week shared extraordinary footage showing Eastern Tropical Pacific killer whales preying on dolphins during recent visits from Mexico. The footage ...

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 ...

Some lucky whale watchers were treated to a once-in-a-lifetime spectacle — courtesy of Mother Nature — off the Palos Verdes coast on Tuesday, Jan. 2. A pod of Eastern Tropical Pacific orca whales, ...

Killer whales have been spotted hunting down dolphins - and sharing the catch with pals - for the first time. The dramatic new images of orcas in the Humboldt Current system, off Chile, show them ...

Rather than attacking pleasure boats or eating seals, Old Thom spends his days swimming with Atlantic white sided dolphins. No one quite knows why. Orcinus orca, or killer whales, are more likely to ...

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 ...

Two boats have been attacked by a pod of orcas off the coast of Portugal. A video of the marine mammals hitting a yacht was ...

A second endangered orca this year was seen carrying its dead newborn in Washington waters, highlighting the species' ongoing crisis.