A Hawaii-based fisherman has shared stunning footage of his brief encounter with two “massive” orcas this week, along with an ...

A rare encounter was caught on camera off the Big Island when two massive killer whales — also known as orcas — swam right up ...

When researcher Jared Towers set up his cameras underwater to observe a pair of killer whales, he saw something strange.

Recent videos show astonishing behavior in orcas: these marine mammals have repeatedly attempted to share their food with ...

Return of orcas, humpbacks has been decades in the making, following the end of commercial whaling in B.C. in late 1960s ...

The world of animals is difficult to explore in its entirety. One of mankind's goals since time immemorial has been to know ...

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

Orcas were spotted using kelp as a grooming tool on each other, the first known use of tools among cetaceans for something ...

Haight listed several popular viewpoints in Pierce County for seeing the whales: ...

Researchers have documented orcas seemingly gifting rays, seals and fish to scientists and divers, which could suggest they have theory of mind and engage in altruism – even across species ...

To start a kelp-based grooming session, an orca places the bull kelp stipe on its face and nuzzles against another killer ...

Other animals including some early humans, non-human primates, sea otters, elephants, and bird species are known to use objects to make tools. While the bubble nets that humpback whales use to catch ...