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 ...

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

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

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

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

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 ...

Most scientists agree that animals do not possess the multifaceted emotional capacity to plot out a highly specific saga of ...

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 ...

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