Some say they got this name because sailors noticed their ability to dispatch enormous whales and dubbed them ‘whale killers’ ...

Orcas, or killer whales, are deadly and beautiful apex predators. Hakeem Jeffries says Obamacare subsidy extension 'will pass ...

Aerial and underwater footage captured around Vancouver Island in Canada shows the two marine animals working together to hunt salmon.

Off the coast of British Columbia, dolphins lead killer whales to salmon and earn their share of lunch, a new study reveals.

In a new sign of toolmaking in marine mammals, orcas in the Pacific Northwest were recorded rubbing stalks of kelp against each other’s bodies, a study shows. By Jacey Fortin A hundred feet or more ...

The more we learn about orcas, the more remarkable they are. These giant dolphins are the ocean's true apex predator, preying on great white sharks and other lesser predators. But for all their ...

Step aside, primates and crows. Thanks to new drone footage, killer whales have joined an exclusive club: the short list of animals that make and use tools. Scientists have discovered that southern ...

Orcas off the west coast of North America are grooming each other with kelp, in a rare sighting of marine mammals manufacturing and using tools. For several years, scientists have been keenly ...

How big they are: From 5 to 32 feet (1.5 to 10 meters) long, depending on the species Dolphins live in almost every ocean, except most tend to avoid the cold waters in the Arctic and around Antarctica ...

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.