When We First Walked

This When We First Walked video also includes:

Out of all mammals, only humans walk on two feet. Discuss the current scientific understanding of when this specific adaptation began. A video shares facts about many different species and theories about why the shift occurred. New evidence in the fossil record changes the fascinating family tree, leading directly to us.

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CCSS: Adaptable
Instructional Ideas

  • Create a timeline of when each of these species lived
  • Map each of the fossil finds
Classroom Considerations

  • Relies on prior knowledge of evolution, early humans, and geography

  • Provides a long list of references for extended learning
  • Works well in a traditional or flipped class

  • None