Age changes in some bodily dimensions of Apes

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Abstract
Summary.: Basic statistical data are given for four overall bodily measurements and two derived indices of seventy‐three wild chimpanzees and eighty‐eight gorillas of all ages. Sexual differences are established shortly after the first permanent molars have erupted. Each measurement increases rapidly as the remaining permanent teeth erupt and some growth continues after the third permanent molars are in place. The overall shape of the ape's body and limbs remains practically constant as the permanent teeth erupt, and there is little evidence that growth in these parts follows an allometric pattern. The growth relationship between the face and cranium is, however, strongly allometric.