Las Arenitas is an artificial oasis that recycles used water from the border city of Mexicali to regenerate ecosystems in the ...

Rattlesnakes are the only native venomous snakes in California. Here's where they live and what to do if you are bitten.

Did you know that there are over 3,000 different species of centipedes, and scientists believe that there could be 5,000+ ...

A silent crisis slithers through the sunbaked deserts and rugged mountains of the American Southwest—a crisis woven from ...

The first Trump administration built long segments of steel wall on Arizona's border. Conservationists fear wildlife will ...

The Arizona Game and Fish Department (AZGFD) is seeking homes for over 100 non-releasable desert tortoises. With these ...

With more than 1,200 square miles of land area, U.S. Army Yuma Proving Ground (YPG) is the fourth-largest installation in the ...

For $6 million, Pima County is purchasing Kelly Ranch, a 109.7-acre piece of environmentally sensitive land sandwiched ...

Hummingbirds are among the tiniest creatures on a birdwatcher's checklist, and they can check off 15 species migrating ...

Named for the lizard found in the Sonoran and Mojave Desert and northwestern Mexico, Chuckwalla ... decades “presidents from both parties have used national monuments to preserve cultural and historic ...