As official research positions are lost to budget cuts, the work of citizen scientists to preserve federal forests is ...

Researchers are concerned the declines will lessen the scale of and in some cases possibly eliminate the large saguaro forests in Arizona.

The 35-year-old law bars adult children and their parents from suing for wrongful death caused by medical malpractice.

Near the end of her pregnancy, she traveled more than 2,000 miles to get to the U.S.-Mexico border. Here's what happened next.

The 24-year-old was nearing the final month of her pregnancy and wandering alone through the Sonoran Desert south of the ... becoming one of a handful of people to receive a “Notice to Appear ...

CBP was just following the law, as dictated by Trump, when it callously tried to deport a Guatemalan mother and her newborn ...

A rush of proposals to mine the state’s famed “sky islands” with water drawn from overtaxed aquifers is drawing opposition ...

The garden's brightly colored plants sharply contrast the Sonoran Desert's cinnamon-red buttes, and numerous hiking trails – like the Plants and People of the Sonoran Desert and the Harriet K.

“I think Tucson served as a good model for what the people can do on the ground level ... just north of the southern border along the Sonoran Desert and roughly 70 miles from Tucson.