A new addition to the endangered southern resident killer whale population has been spotted in Puget Sound, bringing cautious optimism to researchers.

On March 20, an orca calf was spotted in the Puget Sound. That alone is cause for excitement, but this calf has an interesting story: The calf is related to a killer whale that was captured by ...

A new orca calf was seen swimming with Southern Resident orcas, delighting Puget Sound residents and killer whale researchers alike. A field biologist spotted the calf while traveling with the J Pod ...

A new baby orca born to J Pod is a ray of hope for the endangered southern resident killer whales. J63 was spotted by Mark Malleson, field biologist for the Center for Whale Research, on April 6. J ...

SEATTLE — A new orca calf spotted in the Puget Sound last week is part of the family of the last killer whale captured in United States waters. The new Bigg's, or mammal-hunting, orca calf was spotted ...

A new orca calf has been born in the Pacific Northwest, and this baby boasts an impressive family tree. The orca calf belongs to a family of transient killer whales, or “Bigg’s” killer whales, and was ...

Ships moving through a busy channel off Washington state's San Juan Island are slowing down this summer as part of a study to determine whether that can reduce noise and benefit a small, endangered ...

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

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

That was the word last night from two of the researchers who have seen the calf up close, Mark Sears and Maya Sears, the West ...