Arizona developers could face some obstacles if federal officials place the Sonoran Desert Tortoise on the endangered species list. It could mean more restrictions on where and what land they can ...

A federal judge has partly ruled in favor of environmental groups challenging what one called a vast "spaghetti" network of popular off-road vehicle routes in the Mojave Desert, which they charge are ...

Spotting a Mojave Desert tortoise is increasingly difficult in the American Southwest. The tortoises, with their unmistakable domed patterned shells, live in California, parts of Nevada, Arizona and ...

With the Northern Corridor Highway approved in Southern Utah, some of Utah's slower and smaller residents could be affected: tortoises.

The Fish and Wildlife Service proposal would ease permitting for projects that could harm the threatened species in an area with significant development possibilities. A long-awaited conservation plan ...

Mojave National Preserve officials are continuing their efforts to protect endangered desert tortoises from vehicles with the installation of dozens of miles of roadside "tortoise fencing" in tortoise ...

Spotting a Mojave Desert tortoise is increasingly difficult in the American Southwest. The tortoises, with their unmistakable domed patterned shells, live in California, parts of Nevada, Arizona and ...

The Fish and Wildlife Service in 2022 said listing the species found in Arizona and Mexico is not warranted. Environmentalists have returned to federal court in hopes of securing Endangered Species ...

For the desert tortoise, an approximately 1-foot-long reptile found in desert valleys across California and the American Southwest, a full lifespan can be up to 80 years. So while the Mojave National ...

The federal government decided this week against protecting the desert tortoise that lives in the Sonoran Desert, although it agrees with environmentalists that it deserves federal protection. The U.S ...