Disturbing a desert tortoise in its native habitat is not only risky for the tortoise, it's illegal, state officials say.

VAIL, Ariz. — A couple in southern Arizona got quite the surprise when they found a Gila monster paddling around in their ...

Tucson locals have mastered the art of surviving their desert city while dodging tourists in cowboy hats and boots askin ...

Arizona utilities are building a 600-mile natural gas pipeline, despite recent solar investments, because they know they need big-scale power now.

Scottsdale Mayor Lisa Borowsky is backing a plan to relocate dozens of wild horses from the Salt River area to the city’s ...

Phoenix locals have mastered the art of surviving their desert city while dodging tourists in shorts and flip-flops in 1 ...

South32’s Hermosa mine would be the first approved under a new, fast-tracked process. The company recently notified local ...

Despite all the buzz around space tourism and giant rockets that can get us to the moon and beyond, life in space is still a ...

The Santa Cruz River, dried up and polluted, came back to life recently, sustained by highly treated wastewater from two water reclamation facilities.

The Center for Biological Diversity petitioned the U.S. Fish and Wildlife Service today to protect the LeConte’s thrasher ...