The study, published in PLOS One, focused on coyotes in the Los Angeles area. Led by Rachel Larson, who at the time was a biology graduate student at California State University Northridge, researchers studied the animals using two different methods. The first was poop. Aided by around 150 citizen scientists, the team collected and dissected the feces—or “scat”—of coyotes across Los Angeles, Westlake Village and Thousand Oaks, scooping poop from both urban and suburban areas. They were searching for tangible signs of anything the coyotes may have been eating, like fur, feathers, bones and seeds.