The big problem for endangered orcas? Inbreeding

  • FILE - An endangered southern resident female orca leaps from the water while breaching in Puget Sound, west of Seattle, on Jan. 18, 2014. (AP Photo/Elaine Thompson, File)

SEATTLE — People have taken many steps in recent decades to help the Pacific Northwest’s endangered killer whales, which have long suffered from starvation, pollution and the legacy of having many of their number captured for display in marine parks.