Once thriving, there are now believed to be just 73 Southern Resident killer whales left in Washington state's Puget Sound.

Charlotte Rampling and Richard Harris are the heavy-hitting Oscar nominees facing off with a big plastic whale.

The apex predators have offered up fish, birds, turtles and whales to humans around the world, according to the study.

As humans increasingly appear in orcas' marine neighborhoods, the whales could be interested in learning about us: our ...

Keeping track of hundreds of orcas is being made simpler with the help of an AI algorithm that can identify individual killer whales with 92% accuracy.

They amuse us by wearing salmon hats, enrage us by sinking our expensive yachts, and now they have been documented sharing their meals with us – why?

Wild orcas across four continents have repeatedly floated fish and other prey to astonished swimmers and boaters, hinting that the ocean’s top predator likes to make friends. Researchers cataloged 34 ...

"My life changed forever when I saw Free Willy at 3 years old, and maybe, just maybe, coming to this screening will change ...

Killer whales are intelligent creatures, and scientists have recently discovered a new behavior among the species. Despite ...

Researchers documented 34 instances of purported prey-sharing behavior, which suggests orcas may be altruistic and capable of ...

Orcas often share food with each other—it’s a prosocial activity and a way that they build relationships with each other,” ...

The white belly of a great white shark serves a surprisingly useful purpose.