The Sixth Extinction: Patterns of Life and the Future of Humankind

Richard Leakey, One Of The World's Foremost Experts On Man's Evolutionary Past, Now Turns His Eye To The Future And Doesn't Like What He Sees.

To the philosophical the earth is eternal, while the human race — presumptive keeper of the world's history — is a mere speck in the rich stream of life. It is known that nothing upon Earth is forever; geography, climate, and plant and animal life are all subject to radical change. On five occasions in the past, catastrophic natural events have cause...