The small fish are expected to thrive inside Biosphere 2 and establish a new, local population, according to researchers.

Some biologists worry about the impact burros could have on Arizona's desert ecosystem from eating larger plants relied upon ...

Manitowoc County Fish & Game donated $500 to two local youth trap shooting programs and $2,000 to a wood duck and bluebird ...

A black bear wandered onto an elementary school campus after being displaced by wildfires. Watch authorities capture the interloper.

The Tucson Police Department assisted in capturing a bear who made his way to a neighborhood and slept in a tree.

Robert Zavala, 19, looked up at the dawn sky on the grassy field, searching for doves. He grabbed his shotgun, placed it against his shoulder and aimed. He pulled the trigger, the blast interrupting ...

Arizona's forestry department works to reduce wildfire risk and remove invasive species along the Lower Gila River.

The Peregrine Fund brought five California condors to the Vermilion Cliffs to release into the wild. The birds brought to 88 the number of wild birds in Arizona and Utah. The condors were hatched and ...

Sept. 30 (UPI) --An Arizona wildlife photographer who failed to find any interesting wildlife in a state park ended up capturing footage of a bear in an unexpected place -- a grocery store. The Oro ...

Recent rains have brought out the Sonoran Desert toad. This amphibian has a special defensive ability. Their skin contains a ...