Pacific white-sided dolphins swim off the coast of British Columbia. Dolphins and porpoises in this region have been spotted swimming alongside a population of killer whales known as northern resident ...

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.

Killer whales, also known as orcas, are easily recognized by their stunning black and white appearance. These huge animals can reach up to 26 feet long and are actually the largest members of the ...

Scientists have documented what might be the first case of friendly interactions between killer whales and smaller cetaceans. Here's what they think is going on. Pacific white-sided dolphins swim off ...