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Evolution of Primates. 6.3. Primates. Primates- All primates have opposable thumbs Binocular vision Flexible shoulders that allow arms to rotate Humans, monkeys and apes Divide into 2 groups prosimians - lemurs and tarsiers Anthropoids- monkey, apes and humans. Hominids.

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primates
Primates
  • Primates- All primates have
  • opposable thumbs
  • Binocular vision
  • Flexible shoulders that allow arms to rotate
  • Humans, monkeys and apes
  • Divide into 2 groups
  • prosimians- lemurs and tarsiers
  • Anthropoids- monkey, apes and humans.
hominids
Hominids
  • About 4 Million – 6 Millions years ago hominids showed up.
  • They ate both meat and plants (omnivore)
  • They walked upright on 2 legs.
  • Hominids shared some characteristics with gorillas, orangutans and chimpanzees but a larger brain separated them from apes.
african origins
African Origins
  • 1920’s fossil skull was found in South Africa.
  • Small place for brain but human like jaw and teeth.
  • Australopithecus (oldest hominid) almost complete skeleton found in 1974. Was called Lucy and even though had small brain it did walk upright.
early humans
Early humans
  • Homo habilis-(handy many) simple tools were found around them. Estimated to be 1.5 -2 million years old.
  • Homo erectus- bigger brain 1.6 million years ago. Traveled from Africa to Southeast Asia and possibly Europe.
  • Homo sapiens- evolved 400,000 years ago.
  • Cro-Magnon and Neanderthals about 125,000 years ago.
  • Neanderthals-Short heavy bodies made with thick bone. Small chins and heavy brow bridges. Lived in family groups and used well-made stone tools to hunt. Disappeared 30,000 years ago.
  • Cro-Magnon humans-Found in Europe, Asia, Australia. 10,000 years ago. 1.6-1.7M tall. Lived in caves. Thought to be the direct ancestor of early humans.
  • Homo sapiens- “wise human”