The orca is an apex predator. They are brilliant and often work together to take down large prey, including baby whales.

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

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A new study reveals killer whales fashion kelp into tools and use them to groom each other, a possible first for marine ...

Scientists have documented what might be the first case of friendly interactions between killer whales and smaller cetaceans. Here's what they think is going on. Pacific white-sided dolphins swim ...

A massive killer whale swam deep into Yaquina Bay, hunting alone and stunning onlookers. Here's what we know about T049C — and why he's so well known.

Orca. Image by Openverse. The scientific classification of orcas has contributed to naming confusion over the centuries. Despite being called “whales,” orcas are actually members of the Delphinidae ...

Over the years, not only did she lead the Southern Resident Killer Whales recovery program, she also worked with the Marine Mammal Protection Act and Endangered Species Act, and became a branch chief.

Eba the dog started her life on the streets of Sacramento. Now, she spends much of her time at the front of a boat in the Salish Sea, sniffing out killer whale poop. Eba’s owner is Deborah Giles ...

A team of scientists from the SETI Institute and the University of California at Davis has documented, for the first time, humpback whales producing large bubble rings, like a human smoker blowing ...