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