The Mount Graham red squirrel population in Arizona has ... the University of Arizona, and the Phoenix Zoo.

Mount Graham red squirrels live only in the Pinaleño Mountains, an isolated “sky island” range in southeastern Arizona. Nearly all the squirrels now live outside the currently designated critical ...

The Center for Biological Diversity and Maricopa Audubon sued the U.S. Fish and Wildlife Service today for failing to protect habitat essential to the survival and recovery of southeast Arizona’s ...