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

Over the years, orcas have been seen partaking in some peculiar practices, from sinking sailboats to wearing salmon “hats.” ...

Over the years, orcas have been seen partaking in some peculiar practices, from sinking sailboats to wearing salmon “hats.” ...

For the first time, researchers say they have captured footage of killer whales making tools out of seaweed to seemingly ...

Drone footage has captured killer whales breaking off stalks of kelp and rubbing the pieces on other orcas, a rare case of ...