SAN ANTONIO — It's the blackest dark you could ever imagine! 30 to 40 feet below the surface of the earth, you crawl in on your hands and knees, the humidity hits you like a wave and beads of sweat ...

Using multiple methods of analysis, researchers have identified the movements of a group of humans as they explored an Italian cave system during the late Stone Age. Evidence of crawling in an Italian ...

Evidence of crawling in an Italian cave system sheds new light on how late Stone Age humans behaved as a group, especially when exploring new grounds, says a study published today in eLife. The cave ...