The Phoenix Zoo, along with several conservation partners released 25 threatened garter snakes into the Tonto National Forest ...

The Sierra Nevada Yellow-legged frogs were almost wiped out of Yosemite National Park. But these scientists mounted a wildlife comeback.

These leathery turtles spend most of their lives buried motionless in river mud, but burst into action to catch their ...

Researchers in Peru recently rediscovered a frog species that hadn't been seen for over a century, the Miami Herald reported.

The bald eagle population is seeing record numbers, according to the annual report from the Arizona Game and Fish Department. “It’s absolutely great watching this population continually grow. They’re ...

Researchers discovered that animal color vision evolved long before colorful fruits and flowers, with warning and sexual ...

A new study from the University of Arizona reveals that color vision in animals evolved around 500 million years ago, much ...

Arizona has over 50 scorpion species, including the venomous bark scorpion. These arachnids thrive in the desert but seek indoor shelter in the winter ...

The earliest use of bright colors in animals served as a warning system, a strategy seen in venomous snakes and poison dart frogs.

In 2010, after a two-year review, the U.S. Fish and Wildlife Service determined that the Sonoran bald eagles in Arizona did ...

Conspicuous colors are also displayed by toxic animal species, including many venomous snakes and the brilliantly colored poison frogs of Central and South America, as a warning to potential predators ...