Beluga whales ( Delphinapterus leucas) have also displayed mouth-to-mouth interactions in the wild. During a study on captive ...

Once thriving, there are now believed to be just 73 Southern Resident killer whales left in Washington state's Puget Sound.

They amuse us by wearing salmon hats, enrage us by sinking our expensive yachts, and now they have been documented sharing their meals with us – why?

Prior to this instance, the “tongue-nibbling” had only been observed a handful of times in captivity. First seen in captive ...

A surprising new study now shows that orcas have a softer, possibly even romantic, side as they are caught kissing on film ...

Orcas are brilliant creatures. Their brains are highly developed when it comes to problem-solving skills, cognition, and ...

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

The team ran experiments offering people who returned bottles the option of getting a typical ten-cent payout—or the small ...

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

A nimals using tools is always a pretty cool facet of their behavior, from monkeys cracking nuts to elephants sabotaging ...

From wearing salmon hats to sinking yachts and some impressive marine tool use, orcas can really do it all. Now it seems that ...

The killer whales are using a kind of marine loofah to exfoliate. Rubbing the kelp between their bodies is a form of mutual ...