The transition in human ancestry from Australopithecus, the genus that existed for 2 million years before Homo, has been enigmatic. A key fossil from near the time of this transition is Australopithecus sediba, which is represented by several specimens discovered in a cave in South Africa. Five Reports in the 9 September 2011 Science, as well as a related News Focus package and podcast interview, discuss important features of the A. sediba fossils, including some that are not well preserved in other similar hominid remains.
http://www.sciencemag.org/site/extra/sediba/index.xhtml
http://www.sciencemag.org/site/extra/sediba/index.xhtml
