Blue whale calves enter the world already the size of a bus, yet they still face danger. A hungry killer whale sees a slow, inexperienced target guarded by a single adult. However, orcas cannot reach ...

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

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 ...

Researchers suggest that predation by a subspecies called Bigg's orcas might explain why members of another one, called ...

Orcas have long been revered for their intelligence, adaptability, and group-hunting strategies. But one scientific review spanning two decades has revealed a little-known, yet intriguing behavior.