African monkeys {Old World monkey} include capuchin, macaque, baboon, and mandrill. Macaques include rhesus monkeys (Macaca mulatta) and crab-eating monkeys (Macaca fascicularis). Old World monkeys are arboreal.
nostrils
Old World monkeys (Cercopithecidae) have down-pointing nostrils and short narrow noses (Catarrhini), allowing better vision and more space for frontal lobes.
sitting pads
Old World monkeys sit upright on sometimes colored buttock sitting pads.
tailless
Old World monkeys have no prehensile tails.
reproduction
Old World monkeys have sexual dimorphism and male rivalry.
digestion
Old World monkeys ate fruit and had 32 teeth.
senses
Short narrow noses had nose openings pointed down (Catarrhini), for better vision and more space available for frontal lobes. They had three cone types and full color vision. Postorbital septum isolated eyes from temporal muscles.
evolution
Old World monkeys differentiated from New World monkeys in Oligocene epoch.
types
Xenopithecus was ancient Old World Monkey. Aegyptopithecus was Old-World monkey in Fayum deposits in Egypt.
Biological Sciences>Zoology>Kinds>Monkey>Old World
4-Zoology-Kinds-Monkey-Old World
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Date Modified: 2022.0224