Defenders in the Southwest

Contact Us

110 S Church Ave.
Tucson, AZ 85701
Phone: (520) 623-9653
Fax: (520) 623-0447
defenders@mail.defenders.org

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Polar bear, © Tom Schneider
Conservation Issue
Climate change is now one of the leading threats to wildlife. Find out what Defenders is doing to help animals around the country survive in a warming planet.
Grizzly Bear, © Ray Rafiti
Conservation Issue
We work to create and share strategies to encourage peaceful coexistence between people and wildlife.
Fact Sheet
Known as "prairie ghosts" because they are so elusive, the Sonoran pronghorn (Antilocapra americana sonoriensis) is the fastest land mammal in North America. Smaller and lighter in color than other pronghorn subspecies, it is uniquely adapted for survival in harsh arid conditions.