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Winner, A Friend of Darwin Award, 2024

A gorgeously composed look at the longstanding relationship between prehistoric plants and life on Earth

Fossils plants allow us to touch the lost worlds from billions of years of evolutionary backstory. Each petrified leaf and root show us that dinosaurs, saber-toothed cats, and even humans would not exist without the evolutionary efforts of their leafy counterparts. It has been the constant growth of plants that have allowed so many of our favorite, fascinating prehistoric creatures to evolve, oxygenating the atmosphere, coaxing animals onto land, and forming the forests that shaped our ancestors' anatomy. It is impossible to understand our history without them. Or, our future.

Using the same scientifically-informed narrative technique that readers loved in the award-winning The Last Days of the Dinosaurs, in When the Earth Was Green, Riley Black brings readers back in time to prehistoric seas, swamps, forests, and savannas where critical moments in plant evolution unfolded. Each chapter stars plants and animals alike, underscoring how the interactions between species have helped shape the world we call home. As the chapters move upwards in time, Black guides readers along the burgeoning trunk of the Tree of Life, stopping to appreciate branches of an evolutionary story that links the world we know with one we can only just perceive now through the silent stone, from ancient roots to the present.

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Price Summary

  • We started tracking this book on November 5, 2024.
  • This book was $14.99 when we started tracking it.
  • The price of this book has changed 4 times in the past 245 days.
  • The current price of this book is $14.99 last checked 26 minutes ago.
  • This lowest price this book has been offered at in the past six months is $2.99.
  • The lowest price to date was $2.99 last reached on June 29, 2025.
  • This book has been $2.99 one time since we started tracking it.
  • The highest price to date was $15.99 last reached on May 14, 2025.
  • This book has been $15.99 one time since we started tracking it.

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  • Text-to-Speech: Disabled
  • Lending: Disabled
  • Print Length: 296 Pages
  • File Size: 189 KB

We last verified the price of this book about 26 minutes ago. At that time, the price was $14.99. This price is subject to change. The price displayed on the Amazon.com website at the time of purchase is the price you will pay for this book. Please confirm the price before making any purchases.