Jared Towers was in his research vessel on two separate occasions watching killer whales off the coast of Vancouver Island ...

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 ...

Scientists with the Massachusetts State Division of Marine Fisheries have launched a new program to track where and when the ...

"They've been hanging on by their flipper-tips for tens of decades." Experts baffled by unprecedented behavior of critically ...

The smallest species of whale tricks its predators by gushing red gallons of red fluid into the water when under attack ...

The encounter, observed by snorkelers in Norway, “involved repeated episodes of gentle, face-to-face oral contact.” ...

Effective and noninvasive whale and biodiversity monitoring is now possible with the help of citizen scientists, opening up new opportunities for marine conservation. Water samples collected during ...

Footage captures a pair of orcas nibbling each other's tongues in the Kvænangen fjords in northern Norway. Scientists think ...

In a new sign of toolmaking in marine mammals, orcas in the Pacific Northwest were recorded rubbing stalks of kelp against ...