The American dream of owning a suburban home has led millions to settle on the outskirts of Tucson and Phoenix; today, more than 80 percent of Arizona's swiftly growing population lives in the Sonoran ...

Cactus ferruginous pygmy owls are named for the saguaro cactuses they live in, their rusty-colored stripes, and their small size. They’re as fierce as they are small: These 2.5-ounce raptors prey on ...