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 ...

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

The saguaro is to the American southwest what the Empire State Building is to New York City: A breathtaking icon and a symbol of the region. A cactus that branches like a tree, the saguaro can grow to ...

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, ...

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 ...

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 ...

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 ...