There are various theories aboutwhen our ancestors started walking upright, but a popular view is that perhaps about 7-million years ago, early hominids began to adapt to a climate that was cooling globally. Did chimpanzees evolve humans? There's a simple answer:Humans did not evolve from chi...
"Did we walk upright, use tools or have a large brain first?"Many experts saw the answer in Piltdown Man, a skull unearthed in a Sussex gravel pit in 1912. It appeared to confirm what was then the prevailing notion: that humans had originated in Europe, and, as indicated by Pilt...