70,000 years ago, Homo sapiens we suddenly soared from East Africa, and the rapid expansion of the global primary race, one after another around the tragic extinction of native plant and animal species died a half. This sturdy fighting Homo sapiens is from where? "A brief history of mankind," the book says, then we been able to kill all over the world, climbed to the top of the food chain, mainly because of the large hole in the brain, especially for fiction.
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In the sea of ​​knowledge with dogs dig it ~