The Sonoran Desert is a world like no other—an expansive, living landscape where rugged mountains, gigantic cacti, and an astonishing diversity of life create an ecosystem of wonder. Covering more ...

Livestock grazing and urban development, along with the ever-increasing use of off-road vehicles, continue to degrade the tortoise's vanishing habitat ... previously called "the Sonoran population of ...

The Center for Biological Diversity today released documentation showing continued widespread damage to critical habitat for ...

The curve-billed thrasher—the common thrasher of the rich, cactus-laden Sonoran Desert—can be very conspicuous ... Adults distinctive; note different habitat and calls compared with the ...

With Arizona heating up, Sonoran desert tortoises are on the move just ... “The survival rate of a tortoise removed from a habitat and then put back to the habitat where they were taken from ...