In the vast urban sprawl of Arizona, the habitat of the tiny western burrowing owl is being destroyed—prompting ...

Monarchs across the continent face mounting threats, chief among them vanishing milkweed, the host plant for the insect's ...

Large wildfires in the desert were once rare. Now experts worry that invasive plants and a changing fire cycle are putting ...

Shutterstock Beware of These Spiny Creatures Rattlesnakes are deadly, yes, and Arizona’s deserts have a lot of them. Unless ...