Introduced donkeys and indigenous pumas are helping to resurrect extinction food webs in Death Valley

Mojave Burros, Death Valley. ©Michael Alfuso. Credit: ©Michael Alfuso Around 12,000 years ago, a diversity of horses and their kin (known as equids) roamed North and South America. These animals were hunted by large, mythical-sounding, now-extinct predators, such as saber-toothed cats and dire wolves. In a geologic heartbeat, these animals went extinct, likely due to … Read more