22.1: The Nature of Species and the Biological Species Concept
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- 22.1.5: Evidence of Evolution
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- 22.1.5.1: The Fossil Record as Evidence for Evolution
- 22.1.5.2: Fossil Formation
- 22.1.5.3: Gaps in the Fossil Record
- 22.1.5.4: Carbon Dating and Estimating Fossil Age
- 22.1.5.5: The Fossil Record and the Evolution of the Modern Horse
- 22.1.5.6: Homologous Structures
- 22.1.5.7: Convergent Evolution
- 22.1.5.8: Vestigial Structures
- 22.1.5.9: Biogeography and the Distribution of Species