U of A Computer Science - University of Arizona Computer Science Department.

Arizona Research Laboratories - Arizona Research Laboratories at the University of Arizona

Southeastern Arizona Bird Observatory - Information on birds and birding in southeastern Arizona.

Arizona NewsFlash - Science NewsArizona Native Plant Society - Nonprofit organization devoted to Arizona's native plants

Flandrau Science Center - Science Center in Tucson, Arizona.

The Mount Graham Coalition - Native Americans, scientists, conservationists and citizens have resisted development of Mount Graham's desert "Sky-Island" ecosystem. It's time for all of us to stand up and say NO.

Arizona Towering Giant Saguaros - Information on Champion specimens of giant Saguaro cactus.

Under Desert Skies - Personal site and life in the Arizona desert, with emphasis on its wildlife, including the coyote but also its neighbors. Photos, information, art, and links.

Smithsonian Magazine - Tunnel Vision - Arizona Naturalist Pinau Merlin celebrates life in the desert by keeping a close eye on it