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

THIS is the astonishing moment a pair of orcas was spotted kissing – with tongues – for the first time ever in the wild. The ...

A B.C. research and conservation group has crafted a new free course aimed at helping protect whales by educating boaters ...

The orcas approached people, dropped the item, and awaited a response. The post Killer whales to invite humans for lunch ...

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

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

The rare and awe-inspiring gestures were documented off the coasts of B.C., California, New Zealand and Norway. Researchers say their new study is the first documentation of these kinds of gestures by ...

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

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

Orcas, also known as killer whales, are among the most intelligent and social of marine mammals. They live in tight-knit pods ...

The apex predators have offered up fish, birds, turtles and whales to humans around the world, according to the study.

A study published in the journal Current Biology describes a new example of tool use by a critically endangered population of ...