The Canadian government is redoubling its efforts to protect a critically endangered population of Southern Resident killer ...

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

Like a proud cat leaving a bird on its owner's doorstep, orcas—also called killer whales—may sometimes offer to share their ...

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

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