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

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

Researchers come 'eye-to-eye with a killer whale' during their Antarctic expedition.

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

Fish-eating killer whales in southern Alaska have a diverse, seasonally changing diet featuring salmon and groundfish, ...

The discovery came as a surprise, because the two species usually prefer to avoid each other and keep a safe distance.

A long-term study using DNA from whale scat has revealed surprising complexity in the diets of southern Alaska’s fish-eating killer whales.

A pod of seven killer whales was spotted in Algoa Bay, marking a rare local sighting. Experts confirm the group is a known ...

In the North Pacific, orca fins with signs of cannibalism are washing up on a Russian beach. The findings suggest that killer whales occasionally participate in cannibalism, which might explain why ...

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

Fish-eating killer whales in southern Alaska have a diverse, seasonally changing diet featuring salmon and groundfish, according to a recently ...

A Southern right whale gives a paddleboarder a boost with his fin in this amazing drone footage of the encounter.