%0 Journal Article %A Kivell, Tracy L. %A Schmitt, Daniel %+ Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Max Planck Society %T Independent evolution of knuckle-walking in African apes shows that humans did not evolve from a knuckle-walking ancestor : %G eng %U https://hdl.handle.net/11858/00-001M-0000-000F-F909-F %F EDOC: 437710 %R 10.1073/pnas.0901280106 %D 2009 %J PNAS %V 106 %N 34 %& 14241 %P 14241 - 14246