
The reported deaths this week of three more southern resident orcas have brought renewed urgency to efforts to save the critically endangered population of whales. Many scientists and policymakers are focusing on the orcas’ access to their main source of food, the Chinook salmon. Members of the orca population are appearing dangerously thin and malnourished. But is the drop in their numbers the result of a lack of Chinook? It is an increasing matter of debate among scientists. By Jeff Rice, Puget Sound Institute As the population of southern resident […]