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Resistance to malaria. Blue eyes. Lactose tolerance. What do all of these traits have in common? Every one of them has emerged in the last 10,000 years.

Scientists have long believed that the "great leap forward" that occurred some 40,000 to 50,000 years ago in Europe marked end of significant biological evolution in humans. In this stunningly original account of our evolutionary history, top scholars Gregory Cochran and Henry Harpending reject this conventional wisdom and reveal that the human species has undergone a storm of genetic change much more recently. Human evolution in...

This book is about the ecology and population dynamics of a group of cattle and goat herders in the northern Kalahari Desert ofthe Ngamiland district of Botswana. Although the Herero arrived in this region less than a century ago as destitute refugees, these staunchly traditional Bantu speakers have established themselves as a prominent and prosperous tribe in a pocket of the Kalahari previously occupied almost exclusively by Kung-speaking foragers. Their rise to economic prominence in Botswana has been accompanied by dramatic decreases in mortality and increases in fertility, and a...