PHOENIX — A Tucson-based environmental group is petitioning the U.S. Fish and Wildlife Services to put seven amphibians and reptiles on the endangered-species list, including four native to Arizona.

The Carson Valley monkeyflower is a small, annual herb that grows in sandy flats and gentle slopes in Nevada and California. The Center for Biological Diversity petitioned the U.S. Fish and Wildlife ...

Arizona is crawling with venomous snakes, and no, that’s not just desert folklore. With more rattlesnakes than any other state — 14 species, to be exact — Arizona is the undisputed rattler capital of ...

COCHISE COUNTY, Ariz. — From rattlesnakes to Gila monsters, scorpions to Sonoran toads and many more, Arizona is known for the many critters that call the state home. Now, there is one more to know ...