Researchers for the first time have documented orcas cooperating to smash their prey. Both instances were captured on video.

Researchers in the Gulf of California have documented a dramatic orca behavior never described before. In two separate encounters, one orca gripped a dead sunfish by the fin while another charged into it at high speed,

But off the coast of Baja California, a group of orcas has adopted a brutal way of hunting sunfish: With an unusual maneuver, the orcas pulverize the giants. Erick Higuera, a marine biologist at Conexiones Terramar,

While one orca holds the tail of a sunfish, another orca rams into it, smashing it to bits. Researchers say the orcas might be playing a game. The heaviest bony fish on the planet, these large, flattened animals look like 1,

The behavior could be a strategy to help younger orcas feed, or it may just be for their own amusement, researchers say

Orcas are called killer whales for a reason. These apex predators are fearsome hunters who employ diverse strategies and work collaboratively when tracking down a meal. But could

An orca drags and spins a sea turtle, as if trying to show her baby how to hunt. Researchers say it might be an example of teaching.