a killer whale teaches its baby how to hunt by headbutting a dolphin, causing it to flip several times in the air. "The orcas catch the dolphin, but let it go after it's subdued because it's not ...

For the first time, scientists have captured video evidence of orcas cooperatively hunting whale sharks, the largest species ...

Researchers have documented killer whales working as a team to prey on whale sharks in the Gulf of California.

Whale sharks are gentle, filter-feeding giants, but orcas in Mexican waters were documented attacking the animals and ...

Off the coast of Mexico, scientists have observed a pod of killer whales adapting new skills to help them hunt these docile ...

Marine biologists documented the never-before-confirmed behavior among orcas living in the Southern Gulf of California.

The dinner menu for the world’s orca whales is pretty varied. Some, like the crafty transient killer whales in the Pacific northwest, use canyons to hunt other marine mammals, while others feast on ...

Two Southern Resident killer whales have successfully given birth since and are still alive, the Seattle Times said. According to research from the University of Washington, failures to reproduce ...

Researchers studying the Southern Resident killer say she is still carrying her baby, as of Wednesday. Killer whales have been known to carry dead calves for as long as a week, but scientists ...

A female orca appeared to have adopted or abducted a baby pilot whale in the first known case of its kind, scientists say. The orca, known as "Sædís," was first observed swimming with the pilot ...