SEXUAL DIFFERENCES IN THE DIMENSIONS OF THE MILK TEETH OF THE CHIMPANZEE AND GORILLA

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SUMMARY

  • 1Comparisons have been made between fifty-eight dimensions of the milk teeth of (a) the male and female chimpanzee, (b) the male and female gorilla.
  • 2There is no evidence that the milk teeth of the male chimpanzee differ in size from those of the female.
  • 3The milk teeth of the male gorilla are, on the average, 3 per cent bigger than those of the female.
  • 4These differences appear before the hormonal factors responsible for the pubertal growth spurt become operative, and may be controlled genetically.

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