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8 Bipedalism


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8 Bipedalism

  1. 1. Bipedalism and Human Evolution
  2. 2. Fossils and the Fossil Record • Fossils are any remnant of ancient life (bone, footprint, preserved muscle tissue…etc.) • The fossil record is the entire collection of fossils left behind by all organisms on earth.
  3. 3. Paleoanthropology • Paleoanthropology is the study of our extinct ancestors (and close relatives) through the fossil record.
  4. 4. Common Ancestry • Around 7 million years ago there was a common ancestor to both the African Apes and the organisms known as hominins.
  5. 5. Hominins • Hominins are the branch of Hominoidea to which humans and our ancestors belong to.
  6. 6. Hominoid Evolution
  7. 7. Bipedalism • Hominins are habitually bipedal primates. • Bipedalism refers to walking on two legs.
  8. 8. Bipedalism • Bipedalism is the characteristic that defines hominins. But what advantages does walking on two legs offer? And why might it have been a useful adaptation?
  9. 9. Bipedalism • Vigilance Model • Carrying Model • Heat Dissipation Model • Energy Efficiency Model • Foraging/Harvesting Model • Display Model