There is several things to do at Saguaro National Park located in Tucson Arizona. Beyond activities, the park itself pro ...

1:D - The saguaro cactus, the largest cactus species in the world, can grow to more than 12 metres tall, and may have many thousands of spikes, especially if it has many arms., 2:B - Ivory is a hard, ...

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 ...

Arizona’s iconic saguaro cactuses seem like immobile sentinels standing watch over the Sonoran desert landscape. But beneath their still, spiny exteriors, these towering cactuses are actually ...

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 ...

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 ...

TUCSON, Ariz. — 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 icon ...