Conservationists warn that continued border wall construction could block vital wildlife corridors and threaten jaguars’ ...

The rare Sonoyta pupfish were introduced into a desert river habitat inside the huge Biosphere 2 structure near Tucson. The dish are native to Quitobaquito Springs near the Arizona-Mexico border, but ...

The endangered Mount Graham red squirrel population has stabilized at around 232 individuals, even during a persistent drought in the Sky Islands. Conservation efforts have helped the species recover ...

ARIZONA New jaguar spotted in wild The spots gave it away. Just like a human fingerprint, the rosette pattern on each jaguar ...

The spots gave it away. Just like a human fingerprint, the rosette pattern on each jaguar is unique so researchers knew they had a new animal on their hands after reviewing images captured by a remote ...

FLAGSTAFF, Ariz. (AP) — Scientists have long suspected that Mexican long-nosed bats migrate through southeastern Arizona, but without capturing and measuring the night-flying creatures, proof has been ...

The spots gave it away. Just like a human fingerprint, the rosette pattern on each jaguar is unique so researchers knew they had a new animal on their hands after reviewing images captured by a remote ...

Arizona’s desert birds are in decline, according to a national conservation report tracking long-term bird populations, prompting one conservation group to ask the federal government to take action on ...