Orcas display a variety of skills, like coordinated hunting and regional ‘dialects.’ They have also revealed several interesting habits, like grooming each other with kelp and offering food to humans.

Like a proud cat leaving a bird on its owner's doorstep, orcas—also called killer whales—may sometimes offer to share their prey with humans, according to research published in the Journal of ...

When researcher Jared Towers set up his cameras underwater to observe a pair of killer whales, he saw something strange. She closed her mouth, paused, apparently watching for Towers’ reaction and hung ...

Orcas, also known as killer whales, are among the most well-studied marine mammals, captivating the public and scientists alike with their intelligence, strong social bonds and complex behaviors.

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.

A pod of Pacific white-sided dolphins off the coast of British Columbia have been observed cooperating with orcas, a traditional enemy that’s better known for taking out great white sharks than ...

If you liked this story, share it with other people. Southern resident killer whales in the Salish Sea off the U.S. state of Washington have been observed making tools from bull kelp stalks, biting ...

South of Santa Cruz, where coastal waters meet the open Pacific, are the deep waters of the Monterey Bay National Marine Sanctuary. It's home to an amazing array of creatures: over 300 marine mammal ...

Simon Fraser University researchers have received nearly $1 million in special funding from the Digital Research Alliance of ...

Cook Inlet belugas swimming in northern Cook Inlet, near Anchorage, Alaska. Photo: Arial BrewerAlaska's Cook Inlet was home to nearly 1,300 beluga ...