From carpet beetles to ladybugs to palo verde beetles, here's what to know about the most common beetles in Arizona and why ...

The saguaro cactus is the iconic plant of the Arizona borderlands, and in June and early July, its fruit ripens. For the Tohono O’odham Nation, harvest time ...

A cache of Triassic fossils in Arizona has revealed Eotephradactylus mcintireae, or "ash-winged dawn goddess," the oldest ...

Researchers were able to date the fossil of the flying reptile, a close cousin of dinosaurs, back to more than 209 million ...

A Smithsonian-led team of researchers have discovered North America's oldest known pterosaur, the winged reptiles that lived ...

From what the researchers were able to gather, the new species of pterosaur—dubbed Eotephradactylus mcintireae after Suzanne ...

Paleontologists have uncovered in Arizona a Triassic treasure trove of fossils dating back 209 million years ago.