AdvertisementKilling Coyotes Is Not As Effective As Once Thought, Researchers Say03:52Download AudioResumeJune 14, 2019facebookEmailA coyote runs down the road in Wyoming's Yellowstone National Park. In 2018, more than 68,000 coyotes were killed in the U.S., including 5,600 just in Wyoming, under an Agriculture Department program. (AFP/Getty Images)