Saguaros sway all the time, not just when the wind blows, according to an innovative new seismic study from a geologist who grew up in Tucson.

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A saguaro in the Tucson Mountains was fitted with a seismometer to record its movements. Disclaimer: AAAS and EurekAlert! are ...

Towering structures must be able to bend and sway when subjected to the forces of wind and ground movement, or they will topple, whether it's a ...

Towering structures must be able to bend and sway when subjected to the forces of wind and ground movement, or they will ...

Get Saguaro information, facts, photos, and more in this Saguaro National Park guide from National Geographic.

Among the affected plant species, another Arizona icon: the saguaro cactus. For the study, state biologists compared areas ...

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 ...

The giant Saguaro Cactus (Carnegia gigantea) flowers bloom at night, but remain open most of the next day, which makes them a common and beautiful sight during late spring and early summer. The iconic ...

Royalty-free licenses let you pay once to use copyrighted images and video clips in personal and commercial projects on an ongoing basis without requiring additional payments each time you use that ...

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 ...