Crickette M. Sanz is an assistant professor in anthropology at Washington University, St. Louis, where she teaches courses on primate behavior and human evolution. She is one of the principal investigators of the Goualougo Triangle Ape Project, which focuses on studying and conserving sympatric central chimpanzee and western lowland gorilla populations. Josep Call is a comparative psychologist specializing in primate cognition at the Max Planck Institute for Evolutionary Anthropology.
He is the co-founder and director of the Wolfgang Kohler Primate Research Center. His work focuses on the study of the problem-solving abilities of primates and other animals. Christophe Boesch is the director of the Max Planck Institute of Evolutionary Anthropology's Primatology department. His work covers many areas of chimpanzee biology, which he has used to further understanding of the evolution of cognitive and cultural abilities in humans.
He is also the founder and president of the Wild Chimpanzee Foundation.