Off the coast of British Columbia, killer whales are tailing dolphins, and both seem to be rewarded with fishy meals. But not ...

Like corn kernels in slowly heating oil, the orca sightings began sparse and unpredictable. But at some imperceptible moment, ...

Using drones and cameras attached to the orcas, scientists have finally been able to learn something about the interaction ...

Wild orcas are not known to attack humans, but that’s partly because most humans are sensible enough not to jump into the water with the apex predators, and without regard for their own safety.

Orcas are some of the ocean's most enigmatic and playful creatures, and they're not as elusive as you might think. Here's ...

Killer whales seen hunting with dolphins and sharing spoils for first time - Orcas may be tracking salmon using dolphin ...

For the first time ever, a unique cooperative hunting arrangement between dolphins and orcas has been documented. Researchers ...

Nature can be brutal. But animals also help each other, sometimes in ways unimaginable to the human observers. For instance, ...

Orcas, also known as killer whales, are not whales at all. They're actually part of the Delphinidae family and are the largest dolphin in the sea.

New study finds northern resident orcas appear to follow Pacific white-sided dolphins during salmon hunts off British ...

Videos show a rare instance of a pod of killer whales attacking and attempting to devour two adult gray whales in Monterey Bay, California.

Canadian researchers capture rare video of killer whales and dolphins working together to forage salmon off B.C. coast.