First Primate

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First Primate

• 65 MYA
• Forward-facing eyes for binocular vision
  (allowing depth perception)
• Increased reliance on vision reduced noses,
  snouts (smaller, flattened), loss of vibrissae
  (whiskers), and relatively small, hairless ears
• Color vision
• Opposable thumbs for power grip (holding on) and
  precision grip (picking up small objects)
• Generalist teeth for an opportunistic, omnivorous
  diet
• Greater facial mobility and vocal repertoire
• Complicated social organization

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Prosimians

• 55 mya
• Lemurs and Tarsiers

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Anthropoids

• 30 mya
• Old World and New World Monkeys

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New World Monkeys

• Long Tail
• Flat Noses

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Old World Monkeys

• Long noses
• Shorter Tails

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Cercopithecoids

• Long noses
• Short/no tails
• Baboons

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Hominoids

• Chimps, Gorillas, Orangutan
• 25 mya
• Walk on all 4s

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Hominids

• Some evidence that they date back 6 mya
• Walk on two legs

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