Arizona is well-known as a paradise for retirees. If you're looking for warm weather and cities to stretch your Social ...

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

About 50 Sonoyta pupfish were released into an artificial stream inside the University of Arizona's Biosphere 2 on Friday in ...

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

Read about the Fort McDowell standoff, a pivotal moment in Arizona's gambling history, and the recent federal investigation into illegal sports gambling.

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

Tucson, Arizona, provides a powerful sense of place and calling, rooted in 4,000 years of human history. Here are key Tucson ...

The Grand Canyon is home to five different life zones, and its wildlife inhabitants are just as diverse as its terrain.

A woman's naked body was found in the Arizona desert in 1989. When detectives finally figured out who she was, they learned ...

A bear cub was corralled up a palm tree after it was spotted wandering without its mom in an Arizona town, deputies said. The cub was first seen last week in San Tan Valley, the Pinal County Sheriff's ...

A new kind of gold rush is sweeping the West, and this time the prize isn’t minerals but megawatts. From Phoenix to ...

The Saint Louis Zoo WildCare Park happily welcomes its first two resident giraffes to the Zoo's new safari park and ...