Orcas are at the top of the marine food chain, with no natural predators. From fish to seals, even great white sharks, ...

Whale watchers in Madeira captured the astonishing moment orcas took down the deep-diving marine mammal. The predatory ...

A U.S.-based research team has documented a rare glimpse of Bigg's killer whales engaging in some unusual behaviour, ...

Get any of our free daily email newsletters — news headlines, opinion, e-edition, obituaries and more. SEATTLE (AP) — A wildlife photographer out on a whale watching trip in waters off Seattle ...

The killer whales ripped the liver out of a shark and passed it around—only the second time orcas have been seen engaging in ...

The ocean is full of mighty hunters. Two of the most feared are the shark and the orca (killer whale). Sharks are ancient, ...

Researchers identified two ecologically distinct communities of transient killer whales along the West Coast, each with unique hunting behaviors, habitats, and social networks.

SEATTLE (AP) — A wildlife photographer out on a whale watching trip in waters off Seattle captured dramatic video and photos of a pod of killer whales hunting a seal that survived only by clambering ...