Killer whale doctors use dart guns, drones, and dogs to treat their orca patients as population numbers plummet

• Researchers are getting creative as they try to treat endangered Southern Resident orcas.
• Scientists have created new drones to get closer to the mammals and collect samples.
• The whales are facing dwindling population numbers amid pollution and depleted salmon supply. 

As population numbers of Southern Resident orca whales dwindle dangerously low, scientists have been forced to get creative with ways to treat and track the endangered creatures.