A study published in the journal Current Biology describes a new example of tool use by a critically endangered population of ...

Like a proud cat leaving a bird on its owner's doorstep, orcas—also called killer whales—may sometimes offer to share their ...

Wild orcas across four continents have repeatedly floated fish and other prey to astonished swimmers and boaters, hinting ...

The whales use quick body movements to tear pieces of bull kelp for use as tools, perhaps the first known toolmaking by a marine mammal.

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

Two killer whales swim one on top of the other in a dark blue sea. The image is taken from above by a drone.© CWR/NMFS permit 27038 The Center for Whale Research team have special permits to ...

Dubbed "allokelping," it might be a unique cultural phenomenon that's as endangered as the orca population itself ...

Killer whales off Mexico have developed coordinated hunting skills to take down whale sharks, adding to their reputation as the ocean's top predator.

The killer whale pod in Mexico hunts and attacks much larger whale sharks by targeting them from below, a study finds Kelsey Williamson Orcas — also known as killer whales — are once again on ...

A survey crew that has spent the past five years tracking whale locations just had their first orca sighting -- off the coast of Kitty Hawk, North Carolina.

A killer whale was spotted balancing a salmon on its head. It’s not clear what the behavior means, but orcas were observed doing the same thing in the 1980s.

A killer whale mom, who shot to fame after she carried her dead calf’s corpse with her for more than two weeks in a harrowing tale of grief, has lost another baby, scientists revealed. The orca ...