Main characteristics:

  • Relatively large brain.
  • Seven cervical vertebrae.
  • 32 or 36 teeth.
  • Teeth appear in two stages: baby teeth are replaced by permanent teeth.
  • Forward-facing eye sockets, for binocular vision.
  • Better sense of sight than smell.
  • Five fingers on each hand and five toes on each foot.
  • Able to grasp objects or hang onto branches with hands or feet.
  • Many monkeys in the American tropics have prehensile tails, which they use as a fifth limb.
  • Many monkeys have thumbs opposed to their other digits.
  • Flat fingernails and toenails rather than claws, in most cases.
  • Constant body temperature.
  • Diurnal, except for one species, the douroucouli (Aotus trivirgatus)
  • 145 known species of monkeys.

Biodôme de Montréal

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