The saguaro cactus may be the most recognizable plant in the Southwest. It’s so entwined with this region that it adorns buildings, logos, signs and license plates throughout Arizona. Its likeness has ...

Arizona’s iconic saguaro cactuses seem like immobile sentinels standing watch over the Sonoran desert landscape. But beneath their still, spiny exteriors, these towering cactuses are actually ...

Fittingly enough, the future of the saguaro begins in the Old Pueblo. Researchers from the U.S. and Mexico gathered in Tucson earlier this month to launch the largest and most wide-ranging effort yet ...

While the Grand Canyon may be Arizona’s most well-known national park, it’s not the only one worth a visit. With 22 total National Park Service monuments, parks, recreation areas, historic sites, and ...

Geologist Jeff Moore was visiting family in Tucson when he got the idea of adapting tools used to measure earthquakes for the study of saguaro cactuses. Studying the inner structure of a cactus ...