Biologists discovered killer whales and dolphins working together to hunt salmon, a behavior never before documented in this ...

Across the world’s oceans, killer whales share the same striking black‑and‑white look yet live radically different lives.

Scientists know a surprising amount of information about Southern Resident Killer Whales, but once the whales leave their ...

A pod of four transient killer whales — including a calf — was spotted Sunday, May 10, 2025, swimming out of the Yaquina River toward the ocean. It’s the latest in a steady stream of orca sightings ...

Killer whales have been caught using seaweed to rub and groom each other in what scientists say is the first evidence of marine mammals making their own tools.