Evolutionary biologists have found fossil evidence of 110 species of pterosaurs, with wing spans ranging from 10 inches to over 33 feet I scout potential sites for camping and photography trips by ...

HORSESHOE CANYON, Utah — In a remote arm of Canyonlands National Park, deep inside a warren of rock and sand, is one of the greatest and most mysterious collections of ancient art in North America.

Next to the headquarters of Seminole Canyon State Park and Historic Site, rising into the clear West Texas sky, stands a 17-foot bronze sculpture that explains why thousands of visitors trek annually ...