Saguaro cactuses tower over Arizona's desert landscape, each year inching higher and higher for hundreds of years as they watch time pass. While they can grow to unique heights, one cactus holds the ...

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 ...

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

Although it’s hard to determine a saguaro’s age, it was estimated that when “Old Granddaddy,” succumbed to bacterial necrosis, the cactus was over 300 years old. But, it was certainly not the 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, ...

Tanisha Tucker Lohse, of the Tohono Oʼodham Nation, picks a ripe saguaro cactus fruit during a harvest day in Saguaro National Park near Tucson, Arizona, this June. Credit: Ross D. Franklin/AP Photo ...

TUCSON, Ariz. (KGUN) — It’s that time of year when saguaros are blooming, so if you’re driving or walking in your neighborhood and come across a saguaro cactus flower, you might want to stop and take ...