Fully Erect 3mya
THE latest discovery, a metatarsal of Australopithecus afarensis at Hadar, Ethiopia reported in the Science (Feb 11, 2011) by Carl Ward et al . of University of Missouri, goes a long way in enlightening us about evolution of erect posture. AUSTRALOPITHECUS ( Australo = Southern , Pithecus = ape), first discovered in South Africa by Ramond Dart in 1924, is considered the first hominid ancestor of modern man, the Homo sapiens . Many species of Australopithecus are known today but the species that generated interest in human evolution the most is Australopithecus afarensis . The poster girl of the species is Lucy, discovered by Johnson in 1974 is the oldest (3.2 million year old) almost complete fossil of a hominid ancestor. Lucy's fossils account for 40% of her bones and almost 80% of her body but foot bones were conspicuous in their absence. BEFORE the present discovery, the bio-mechanical researches of the last decade concluded that Australopithecus had a shuffling shifting ...