Creationists have claimed this petroglyph was proof that humans and dinosaurs coexisted. Now researchers say it's two non-dino drawings plus a stain.
Physical traces of ethnic cleansing that took place in the early 800s suggest the massacre was an inside job.
Archaeologist Craig Lee unearthed a 10,000-year-old ancient hunting weapon in a melting ice patch in the Rocky Mountains.
Early Americans tinkered with the forests by wielding the most powerful tool they had available: fire.
On the trunk of a gnarled, centuries-old oak tree, about 90 miles southwest of Phoenix, Ariz., are odd carvings of six-legged, lizard-like beings. The tree is located at Painted Rock, an archaeological site peppered with hundreds of ancient petroglyphs, images ...