National Geographic Emerging Explorer Jill Pruetz is a biological anthropologist who specializes in primatology. An associate professor at Iowa State University, Jill spent two years in East Africa researching patas and vervet monkeys as well as Grevy's zebras. She is one of the world's foremost chimpanzee experts and is currently conducting ground-breaking research on chimpanzee behavior—funded by National Geographic—in southeastern Senegal.