A newly built segment of border wall in southern Arizona ... to access scarce desert water on both sides of the border, exchange genetic material with nearby populations in Mexico, and bolster ...

Volunteers in Arizona have been leaving water and other life-saving supplies throughout the desert along the US-Mexico border ...

Extending from the southeastern US states of Arizona, New Mexico and Texas deep into central Mexico, the Chihuahuan Desert offers a kaleidoscope of textures and colours ... agricultural activities are ...

The Center for Biological Diversity asked a federal judge today for permission to join the Biden administration as a defendant in Arizona Gov. Doug Ducey’s lawsuit challenging federal authority along ...