deut

a us wi d ch h prov and e uals or et al., 1994). And until recently, available observations on wild chimpanzees had not been collected together. Zihlman et al. (2004) made the first synthesis, taking data from living records and natural deaths in wild chimpanzees at Gombe National Park, Tanzania, and at Bossou, Guinea, in combination with chimpanzees of the Taï Forest of Côte d’Ivoire. Their study led them to the firm conclusion that wild chimpanzees show an “unambiguous pattern ” of delay: Emergence of the permanent teeth in wild chimpanzees is consistently later than 90 % of the captive individuals. In many * Corresponding author