New research confirms two distinct groups of West Coast killer whales with different diets, habitats, and behaviors.

SEATTLE — For the last three years, not one calf has been born to the dwindling pods of black-and-white killer whales spouting geysers of mist off the coast in the Pacific Northwest. Normally four or ...

Amid challenges like dwindling salmon, noise pollution and climate change, the Pacific Northwest is wrestling with how to ...

The latest survey of endangered southern resident killer whales confirms their plateau and gradual slide toward disappearance ...

Monika Wieland Shields, Director of the Orca Behavior Institute, has observed orcas in the Salish Sea, a marginal sea of the Pacific Ocean located in the Canadian province of British Columbia and the ...

A pod of killer whales has been filmed hunting and killing juvenile great white sharks, and then eating just one body part - ...

Orcas, or killer whales, are deadly and beautiful apex predators. Family mourns 18-year-old who died on Carnival cruise ship ...

Despite initial optimism about its condition, J-64 has not been seen since October 23, when researchers saw all 27 members of ...

A Bellingham environmental organization has received a state grant to help with its recent purchase of land to protect and restore habitat in the estuary where California Creek empties into Drayton ...

Seven minutes into the video, the whales attacked a second juvenile white shark. This one was worked over repeatedly until ...