In Antarctica, one orca population prefers penguins, while another likes minke whales. Other behaviors vary from group to group. Some resident killer whales ... fewer than 90 animals—and social ...

A rare sighting of critically endangered southern resident killer whales off the Oregon coast offers a glimpse of a ...

Together, Antarctica and the Arctic act ... Like many other animals here, the future of pack ice killer whales is uncertain. ...one of the most rapidly warming areas in the Southern Hemisphere.

Killer whales, or orcas, have long been recognized as some of the most intelligent creatures in the ocean. Known for their hunting prowess, intricate social hierarchies, and unique communication ...