American Southwest. But new research suggests that even this hardy species could see its habitat shrink significantly in the ...

The most venomous snakes in Arizona include rattlesnakes, sidewinders and coral snakes. Here's where they live and how to ...

The desert has already given us a grim warning this year. One hiker died on the trail. A day later, 28 people—including children with special needs—had to be rescued near ...

American Rivers ranks the Tijuana River No. 2 on its list of most endangered rivers. Advocates are urging the U.S. and Mexico ...