It is unclear if southern resident killer whale J36, also known as Alki, had a stillborn calf or if her female newborn died ...

Once again, an endangered orca in Washington state has been seen carrying her dead newborn calf in an apparent effort to ...

A Southern Resident killer whale has been spotted clinging to her dead baby in the Salish Sea off northern Washington, a ...

Early this year, another Southern Resident orca — known as Tahlequah, or J35 — was observed carrying the body of a deceased ...

An endangered orca was spotted Friday carrying a dead newborn on her nose, umbilical cord still attached, between Orcas ...

An endangered orca​ in Washington state was seen carrying her dead newborn calf in what appears to be an effort to revive it.

The death of an orca calf this weekend has renewed questions about the health of the Southern Resident population and what ...

New research shows southern resident killer whales grooming each other using kelp they’ve modified, and researchers think it’s the first time researchers have documented marine mammals making tools.

A well-known male killer whale was spotted June 9 traveling alone through Yaquina Bay and along the central Oregon coast, drawing attention from researchers, photographers and onlookers as he hunted ...

Like a proud cat leaving a bird on its owner's doorstep, orcas—also called killer whales—may sometimes offer to share their prey with humans, according to research published in the Journal of ...