——.2013.Bonobos，Pan paniscus，chimpanzees，Pan troglodytes，and marmosets，Callithrix jaccbus，prefer to feed alone.Animal Behavior，85，5l-60.
Bullinger，A.，E.Wyman，A.Melis，and M.Tomasello.2011b，Chimpanzees coordinate in a stag hunt game.International Journal of Primatology，32，1296-1310.
Bullinger，A.，F.Zimmerman，J.Kaminski and M.Tomasello.2011c.Different social motives in the gestural communication of chimpanzees and human children.Developmental Science，14，58-68.