Scientists have documented what might be the first case of friendly interactions between killer whales and smaller cetaceans.

Dubbed "allokelping," it might be a unique cultural phenomenon that's as endangered as the orca population itself ...

Wild orcas on more than 30 occasions in four oceans have attempted to share their prey with people, potentially to develop ...

And killer whale youngsters are fond of playing kelp keep-away. But what the southern residents are doing with the kelp ...

Orcas were spotted using kelp as a grooming tool on each other, the first known use of tools among cetaceans for something ...

Researchers have documented orcas seemingly gifting rays, seals and fish to scientists and divers, which could suggest they ...

Whales observed in Salish Sea off western North America Behaviour is a rare instance of tool use by marine mammals It may ...

The more we learn about orcas, the more remarkable they are. These giant dolphins are the ocean's true apex predator, preying ...

Researchers focused on the Salish Sea have made an intriguing discovery about Orcas. These whales, which have continually ...

Harrowing plight of world's loneliest killer whales and dolphins: Tragic stories behind majestic sea creatures neglected and abused in marine parks. By OLIVIA ALLHUSEN.