Credits

Researchers
Sarah Tishkoff, University of Maryland (lead)

Paper
Tishkoff, S. A. et al. 2006. Convergent adaptation of human lactase persistence in Africa and Europe. Nature Genetics. 39, 31-40. (published online 10 December 2006)

Data and Images
Map data (Dallas Swallow, UCL/Sarah Tishkoff, UM)
Pastoralism in Namibia (Aska Karwacka/David Krantz)
Pastoralism in England (Anne Koth)
Pastoralism in Ethiopia (Sarah Browning, University College London)
Pastoralism in Kenya (Floyd Reed, University of Maryland)
Sudanese rock art (Stine Rossel)