With killer whales, expect the unexpected  – Watching our Waterways

Chris Dunagan in Watching Our Water Ways writes: “…I am reminded again that, while we strive to understand animal behavior, we must not judge them in human terms. I just returned home from the three-day Salish Sea Ecosystem Conference in Vancouver, B.C., where orca researcher Deborah Giles of the Center for Whale Research reported on some seemingly odd behavior among our Southern Resident killer whales. The bottom line is that fish-eating orcas are occasionally attacking and sometimes killing marine mammals, specifically harbor porpoises and Dall’s porpoises. Apparently, they are not eating them…”