A decades-old habitat preservation effort in British Columbia, Canada, is showing positive signs for one type of orcas that live there.

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

Orca pods have learned to hunt whale sharks, study shows Marine biologist Austin Gallagher discusses a new study that orcas have learned to hunt whale sharks and other shark species and explains their techniques.

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

In May, researchers captured orcas hunting whale sharks in unprecedented detail. Here, see the aftermath: An orca swims with shark carrion in its mouth. For the first time, scientists have captured video evidence of orcas cooperatively hunting whale sharks,

Known to travel in groups or pods, killer whales can sabotage their victims by encircling them en masse before they attack