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Online Course for Teachers: Teaching Evolution

About this Course 

SESSION 3

SESSION 3: What Is the Evidence for Evolution?

Explore Part A: Fossil Formation

Image of a fossil in the foreground with the American desert in the background.

The story of life is told primarily through its fossils -- the remains of plants and animals that have turned to stone. To see how fossils are formed, watch the Evolution Library video segment "Becoming a Fossil."

Becoming a Fossil
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Next: Explore Part B: Dating Fossils

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