In the Mojave Desert, there's a battle between ravens and threatened desert tortoises (plus their allies: conservationists and U.S. government officials). Until recently, the ravens were winning. But they may have met their match in the form of drones equipped with a liquid oil that prevents the raven eggs from hatching.
When ravens are killing desert tortoises, it's drones to the rescue
- Louis Sahagun - staff writer for the LA Times - @LouisSahagun