The rugged landscape created by volcanic eruptions and tectonic plate shifts in east and south Africa millions of years ago may be what prompted our human ancestors to start walking on two legs, a study said Friday. The research published in the journal Antiquity challenges the commonly-held theory that early…
A new study challenges the notion that humans’ primate ancestors came down from trees and only gradually began to walk upright. According to Scientific American, new findings in the fossil record indicate that our species’ journey to our modern bipedal posture may have been much more complicated and convoluted that…