The U.S. Fish and Wildlife Service has released an initial plan to restore the endangered Sonoyta mud turtle to its native ...

A migration corridor that allows jaguars and ocelots to cross into the U.S. is the latest border wall construction zone.

TUCSON, Ariz.— A federal judge has ordered the Trump administration to make a long-overdue decision on whether to expand critical habitat for Arizona’s highly endangered Mount Graham red squirrels ...

PHOENIX — A national nonprofit conservation group is pursuing federal protections for a rare beetle only found in southeastern Arizona. The Center for Biological Diversity submitted a petition to ...

The right whale population increased to 384, up from 376 the year prior, according to estimates released by The North ...

ASU and Dreamscape Learn launched Arizona's first virtual reality mobile classroom—a 46-foot trailer—to provide middle schoolers with immersive science education, transforming them into field ...