Hi all-- February 18, 2005, press release from University of Arkansas noting Peter Ungar's recent work in creating technology to help extract diet information from fossil teeth: http://www.advancement.uark.edu/news/FEB05/ungar.html "....[T]he teeth of early Homo showed steeper slopes with greater shearing power than the teeth of Australopithecus afarensis, suggesting a dietary shift to tougher foods--possibly meat." --Ed