Can you tell your friends apart just by sneaking a peek at their backsides? Perhaps not, but chimps on the other hand easily match the faces of chimps they know with photos of their rear ends. Such talent suggests chimps carry around “whole body” mental representations of each other that permit them to assign different body parts to the same individual. Frans de wal from Emory University in Atlanta explains.
Listen/Download Frans de wal on Chimps
