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• Highlights

History of Life

1. The Origin of Life on Earth
   
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2. Earth's Earliest Life
   
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3. Sex and Nuclei: Eukaryotes
   
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4. The Evolution of Metazoans
   
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5. The Cambrian Explosion
   
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6. Changing Life in a Changing World
   
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7. The Early Vertebrates
   
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8. Leaving the Water
   
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9. Tetrapods and Amniotes
   
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10. Early Amniotes and Thermoregulation
    
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11. The Triassic Takeover
    
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12. Dinosaurs
    
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13. The Evolution of Flight
    
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14. The Modernization of Land and Sea
    
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15. The Origin of Mammals
    
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16. The End of the Dinosaurs
    
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17. Cenozoic Mammals: Origins, Guilds and Trends
    
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18. Geography and Evolution
    
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19. Primates
    
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20. Evolving Toward Humans
    
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21. Life in the Ice Age
    
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• Carl Sagan explains the geometry of our universe

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