What Was The First Hominid To Walk Upright?
What Was The First Hominid To Walk Upright? The earliest hominid with the most extensive evidence for bipedalism is the 4.4-million-year-old Ardipithecus ramidus. What was the first hominid to walk fully upright? Discovered in Hadar, Ethiopia, it brings compelling evidence that this hominid, a species called Australopithecus afarensis, may have been the first human ancestor