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

Researchers suggest that predation by a subspecies called Bigg's orcas might explain why members of another one, called resident orcas, stay in such large family groups ...

KILLER whales have broken into an all out cannibalistic civil war, scientists believe. Biologists have warned of an all-out orca-on-orca battle being fought in the North Pacific where one deadly ...

Rare J Pod sighting draws attention as endangered orcas pass Tacoma with calf Orca Network confirms early migration linked to salmon availability in region Officials urge minimal boat noise to avoid ...

A baby orca that went missing from the Northwest's struggling killer-whale population turned up Sunday, triggering cheers and family photos at the Whale Research Center in the San Juan Islands. "The ...

A pygmy sperm whale was attacked by a pod of orcas off the coast of Madeira. Orcas preying on marine mammals are rarely seen in the region. Camila Dávila Pardo/ Blue Safari Madeira As the whale ...

CENTRAL COAST, CALIFORNIA -- The ocean just off the central California coast became a playground for a pod of orcas. Video taken by Monterey Bay Whale Watch videographer Evan Brodsky shows the orcas ...