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

The University of Arizona-owned Biosphere 2 introduced the critically endangered Sonoyta pupfish into a stream inside of its ...

Some biologists worry about the impact burros could have on Arizona's desert ecosystem from eating larger plants relied upon ...

We may receive a commission on purchases made from links. There are four major deserts in the United States. A portion of each of them -- the Sonoran, Mojave, Chihuahuan, and Great Basin -- are at ...

Feral donkeys, or burros, in the Sonoran Desert have been eating the larger plants that provide shelter for smaller plants ...

According to the Arizona-Sonora Desert Museum, bobcats are known predators of rattlesnakes, but they are not immune to their venom and could die if they're bitten. An Arizona woman captured a short ...

From icy treats to misting systems, the Arizona-Sonoran Desert Museum is helping animals stay safe in extreme summer heat. TUCSON, Ariz. (KGUN) — As temperatures continue to stay hot across Southern ...

The Wildlife World Zoo in Litchfield Park said guest will be able to see African wild dogs and a type of flying squirrel from ...