The toxic element is turning up in the feathers of peregrine falcons from coast to coast, including those living full time at Lake Mead National Recreation Area, according to a new study by Nevada Department of Wildlife biologist Joe Barnes.
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Dozens of rare relict leopard frogs were set free Thursday in their new urban habitat at the Springs Preserve, part of the effort to revive the species thought to be extinct along the Virgin and Colorado rivers before it was discovered anew near Lake Mead in 1991.
Precious water is vanishing into thin air at the Colorado River’s two largest reservoirs, and scientists are only now learning the true scale of the problem.