Geneticist, anthropologist, and National Geographic Explorer-in-Residence Spencer Wells has analyzed the DNA of thousands of people living in isolated tribes around the world. He leads the Genographic Project, a multi-year endeavor to chart the journey of our early ancestors as they populated the planet. He earned his Ph.D. from Harvard University under the tutelage of distinguished evolutionary geneticist Richard Lewontin; conducted post-doctoral training at Stanford University's School of Medicine with famed geneticist Dr. Luigi Luca Cavalli-Sforza—considered the "father of anthropological genetics"; and was head of the population genetics research group at Oxford University's Wellcome Trust Centre for Human Genetics. Spencer has written three books, including The Journey of Man: A Genetic Odyssey, an award-winning book and documentary film that aired on PBS and the National Geographic Channel. He will be accompanied on the trip by his wife Pamela, an accomplished National Geographic filmmaker.