February 11, 2013: part 1 - first steps, there were many human-like species before us, most like chimps. But catastrophic events forced our ancestors to adapt or die: humans are the most adaptive complex animal on earth, apes which walked on four legs started walking on two, and habitually became bipedal. These were our ancestors, and eventually evolved into us as humans: the afar - north eastern ethiopia. Zurai found a baby face fossil from 3. 3mya, called. Selam, who was an ancient human ancestor from the australopithecus afarensis species, which existed 3-4mya. A small chimp-like creature which walked on two legs. Found part of the spine and shoulder blades with it also. Found with other bones nearby such as kneecap, foot etc. To find out how old she was when she died, looked at the adult teeth growing inside the bone.