Like a proud cat leaving a bird on its owner's doorstep, orcas—also called killer whales—may sometimes offer to share their ...

Orcas in the North Pacific have been seen "massaging" each other - rubbing pieces of kelp between their bodies. Using drones, ...

Continued low calf count indicates that reproduction remains depressed. The eastern North Pacific population of gray whales ...

The population of gray whales migrating along the North American Pacific Coast has dropped to levels not seen since the 1970s, according to a new report.