ALBAWABA - Highly endangered Southern residents, orcas live a particular life, feeding almost exclusively on Chinook salmon and consuming around two dozen fish per day. However, researchers have documented 78 instances of these strictly fish-eating orcas harassing porpoises in the Salish Sea, stretching from Washington State in the US to British Columbia in Canada. (Shutterstock) The orcas harass porpoises in various ways, including pushing, holding, balancing, slapping, and raking them ...