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

Researchers have documented orcas dropping prey and other marine life in front of humans, as if offering us food. The orcas' ...

Researchers documented 34 instances of purported prey-sharing behavior, which suggests orcas may be altruistic and capable of ...

Orcas often share food with each other—it’s a prosocial activity and a way that they build relationships with each other,” ...

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

Wild orcas on more than 30 occasions in four oceans have attempted to share their prey with people, potentially to develop ...

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

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

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?

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

Researchers focused on the Salish Sea have made an intriguing discovery about Orcas. These whales, which have continually ...

The discovery — published June 23 in Current Biology — constitutes the “first evidence” recorded of tool-making by marine ...