New research suggests that inbreeding may be a key reason that the Pacific Northwest’s endangered population of killer whales has failed to recover despite decades of conservation efforts. June ...

New research suggests that inbreeding may be a key reason that the Pacific Northwest’s endangered population of killer whales has failed to recover despite decades of conservation efforts.

RELATED: Endangered orcas’ circle of life: one baby dies, another is born The researchers say knowing which whales are pregnant or have miscarried can help scientists better understand why so ...

In the first known toolmaking by a marine mammal, southern residents have been documented detaching lengths of seaweed and ...

Yes, inbreeding happens, and its effects on the population are still being researched. More tools are needed to help these struggling orcas — one is a better database based on SRKW with multiple ...

The same southern resident orca that famously carried her dead calf for over two weeks in 2018 has lost another one. Marine biologists fear inbreeding is weakening the endangered pod of some 30 ...

Two newborn calves joined the Northwest's endangered orcas in December. By New Year’s Eve, one of them was dead — and being carried around on its mother’s nose.

Whale researchers on Saturday spotted orcas that are part of the endangered Southern Resident pod. They’re back in Puget Sound, for the first time since April. Observers say the whales are ...

WHIDBEY ISLAND STATION, Wash. — Endangered Southern Resident orcas were seen in Puget Sound Saturday, the first whales to be see in the area since April. This was the first autumn sighting of ...