The Amargosa River population of Mojave fringe-toed lizards occupies three dune ecosystems in and adjacent to Death Valley National Park, the largest of which is the Dumont Dunes, which host a ...

Unlike most frogs and toads, Amargosa toads never make a sound unless they're chirping their “release call” when grasped below their forelimbs. These occupants of southern Nevada's Oasis Valley, a ...