Saguaro Park in southeastern Arizona, near Tucson, offers a landscape unlike anything you’ll see elsewhere. The park hosts ...

Justin Stewart, an ecologist with the Society for the Protection of Underground Networks, collects a sample of soil containing mycorrhizal fungi taken at Saguaro National Park. Credit: Wyatt ...

By analyzing the natural vibrations of a saguaro, scientists can study the cactus's insides without cutting them open.

Each side of Saguaro National Park offers a visitor center with restrooms and watering stations. Visitors will find maps, ...

Scientists discovered how to study cactus movement without harm - by measuring the silent sway of these desert giants using ...

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, ...

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 ...

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 ...