The number of orcas whales living off the San Juan Islands in Washington has dropped 15 percent in the last five years and contamination from industrial chemicals in the region’s orcas are the highest found in any living mammal. Yep, things are looking grim for the killer whale. Environmental groups are expected soon to petition the National Marine Fisheries Service to list the orcas as an endangered species, and NMFS’s Doug DeMaster says there’s a 50-50 chance the agency will agree to do so.