As wild burro populations grow, they're putting native vegetation at risk, a new study shows, including the saguaro cactus.

The Arizona Game and Fish Department has collected newf data indicating that feral burros are impacting plants in the Sonoran ...

Towering structures must be able to bend and sway when subjected to the forces of wind and ground movement, or they will ...

Four dozen tiny pupfish are swimming in a constructed habitat in a giant glass structure once meant to house humans.

Planning a trip to Arizona? Here are 12 must-see attractions, from the Grand Canyon to Monument Valley, and other ...

Bobcats in the American Southwest have adapted to their harsh desert environment by resting on saguaro cacti. Their tough paw ...

About 50 Sonoyta pupfish were released into an artificial stream inside the University of Arizona's Biosphere 2 on Friday in hopes of establishing a new reserve population of the endangered ...

Some biologists worry about the impact burros could have on Arizona's desert ecosystem from eating larger plants relied upon ...

From Sedona’s red rocks to Saguaro’s cactus trails, discover why Arizona’s deserts offer peace, healing, and beauty unlike ...

Towering structures must be able to bend and sway when subjected to the forces of wind and ground movement, or they will topple, whether it's a ...

Tucson, Arizona, provides a powerful sense of place and calling, rooted in 4,000 years of human history. Here are key Tucson ...

A recent study from the Arizona Game and Fish Department found that an invasive species of burros is threatening the Sonoran ...