Learn about the fatal encounters between two groups of killer whales, bringing the idea of whale cannibalism into question.

Two severed fins bearing the tooth marks of other killer whales have raised a troubling question: are some orcas hunting ...

Orcas don’t have any natural predators, so how did this happen? The tooth marks, it turned out, were distinctive – they were ...

, March 10 -- Scientists have found possible evidence suggesting that some killer whales may hunt and eat their own species in waters near Russia.

Police responded to an unusual call when a pilot whale calf was found stranded on the beach in Florida. It happened on Monday afternoon along the beaches of Pelican Bay in Naples, Florida.

A study in 2018 revealed that some orcas are able to imitate human speech, mirroring words such as 'Amy', 'Hello' and 'Bye ...

Detached orca fins scored with distinctive tooth marks suggest that killer whale cannibalism is happening — and it might ...

Scientists found evidence that killer whales may hunt and eat other killer whales, revealing new insights into how ...

New Canadian-led research into northern resident killer whales suggests even when food is plentiful, orca moms struggle to ...

Whale biologist Nan Hauser was pushed through the water by a 50,000-pound humpback whale for over 10 minutes as a 15-foot ...

Every animal on Earth is part of a relentless race where survival depends on being faster, stronger, smarter, or better adapted than the competition. From crocodiles and bats to sharks, platypuses, ...

Orcas in Alaska's Prince William Sound and Kenai Fjords have a diverse, seasonally changing diet of salmon and groundfish, consumed across regional foraging hotspots. Photo courtesy of Shutterstock ...