Australopithecus afarensis, famously known as ‘Lucy’, is an extinct hominid that lived between 3.9 and 2.9 million years ago. Australopithecus afarensis was slenderly built, and closely related to the genus Homo, possibly as a direct ancestor or a close relative of an unknown ancestor. Lucy herself is 3.2 million years old, discovered by Donald Johanson and colleagues in the Afar Triangle region of Hadar in Ethiopia on November 24th 1974 [Johanson, D.C. 2009]. ‘Lucy’ was an almost complete skeleton. Her name was inspired by the Beatles song ‘Lucy in the sky with diamonds’.