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

Wild burros' appetite for native desert trees are endangering the health of Sonoran ecosystems, a new study found. By damaging cactuses and other vegetation, the burros also put themselves at risk, ...

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

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