Item #604
Young female chimpanzees use sticks to facilitate play-mothering, which lasts until motherhood; young male chimpanzees do not exhibit such behavior
Topic: DimorphismSource
Citation: Sex differences in chimpanzees' use of sticks as play objects resemble those of children Author(s): Kahlenberg, Wrangham Institution(s): Bates College, Harvard University Link: http://www.cell.com/current-biology/abstract/S0960-9822(10)01449-1?_returnURL=http%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS0960982210014491%3Fshowall%3Dtrue Nation(s): international Year(s): 2010 Source: Primary Type: Behavioral ExperimentDiscussion
Objections/Rebuttals:Pretty small sample size