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 ...

A pod of northern resident killer whales travels together. The same population of orcas was recently seen hunting with Pacific white-sided dolphins. Scientists think the partnership is the first ...

A well-known male killer whale was spotted June 9 traveling alone through Yaquina Bay and along the central Oregon coast, drawing attention from researchers, photographers and onlookers as he hunted ...

Killer whales, or orcas, are the ocean's top predator and have the most varied diet of all cetaceans. Orcas have been detected off the North Carolina coast via underwater hydrophones, but sightings ...

Killer whales and dolphins have been working together to hunt salmon in the northern Pacific Ocean, an unexpected finding that further reveals the complex social lives of marine mammals. Video cameras ...

The species Orcinus orca, generally known as orcas or killer whales, is made up of many genetically distinct populations called ecotypes. Each ecotype indicates an ecological specialization with its ...

Hunting killer whales always eat the animals they kill, typically leaving behind only a few low-energy parts, such as fins. "Also, if it was just aggression, they wouldn't bother to tear off the fin," ...

Killer whales, or orcas, are apex predators with remarkable intelligence, social bonds, and hunting strategies. They live in every ocean, with some populations specializing in unique diets and ...