Arizona's saguaro cactus has evolved to thrive in the extreme climate of the Sonoran Desert, but after decades of rising heat, even these towering icons are showing signs of stress. "It doesn't take a ...

Cactuses sure give Arizonans a lot to talk about. From towering Saguaros that are not what they look like, to a cactus looking like a couple kissing, to stunning flowers that bloom en mass for only ...

Record-high temperatures over the last few years in many parts of the United States have contributed to major stress on plants, animals, and humans. The extreme heat, coupled with a lack of rainfall, ...

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 ...

This sparsely populated area is an outdoor lover's paradise with its close proximity to an underground wonder and a national ...

TUCSON, Ariz. (AP) — Cousins Tanisha Tucker Lohse and Maria Francisco set off from their desert camp around dawn on most early summer days, in search of ripe fruit from the towering saguaro cactus, an ...

In the Sonora Desert in Arizona, the saguaro cacti grow tall and live long. One cactus known to locals as “Strong-Arm” stood more than 40 feet high and had 34 arms. Strong-Arm lived an estimated 150 ...

Catalina State Park officials in Arizona believe powerful monsoon rains brought it down last month. Its trunk has splintered and its large arms are now sprawled on the ground. For around 200 years, a ...