Another orca from 'baby boom' dies, fears expressed about extinction

In this undated photo provided by the University of Washington, Southern resident killer whales swim off the coast of San Juan Island, Wash. A new study to be published Thursday, June 29, 2017, says that the small population of endangered Puget Sound orcas are having pregnancy problems due to stress from not getting enough salmon to eat. (Jane Cogan/University of Washington via AP)