The Sixth Extinction: An Unnatural History

John Kleiner
Vermont Fish and Wildlife Department/Joel Flewelling
Tom Uhlman, Cincinnati Zoo
© Natural History Museum, London/Mary Evans Picture Library
AFP/Getty Images/Newscom
Neanderthal Museum
© Paul D. Stewart/NPL/Minden Pictures
Neanderthal Museum
Thanks to Ed Green
San Diego Zoo
Photo research by Laura Wyss and Wyssphoto, Inc.
Images on pages here, here, here, here, here rendered by Mapping Specialists