The Trump administration's mass firing of probationary employees raises red flags for those working in Arizona's federal ...

Deadly drownings of animals in water canals for irrigation and other purposes have been observed in various countries. The ...

Arizona's dark skies are a haven for astronomers and photographers. Some communities are fighting to keep them that way.

The beautiful shiner — a ray-finned fish found in Mexico, Arizona and New Mexico — hasn’t been seen in New Mexico’s landscape for more than 40 years. A small population remains in a hatchery, captive ...

Wildlife researchers attached radio collars to several bobcats and studied their movement throughout the Tucson area.

Environmental Day at the Arizona Legislature, conservation advocates talked about the issues they wanted lawmakers to address ...

Things looked hopeless for an elk stuck in a ditch in Arizona until a wildlife manager arrived with a plan. Details at ...

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 ...

What we know about southern Arizona bats that tested positive for a fungus tracked by the Arizona Department of Game and Fish ...

A fungus that has killed millions of bats across North America has arrived in Arizona, state wildlife officials announced on ...

At remote Arizona wildlife center, biologists treat endangered birds In Flagstaff, snow showers are expected to continue. The ...

With threats of avian flu and lead poisoning, biologists are working overtime to care for a species that nearly went extinct.