1. Department of Anthropology New York University New York NY USA
2. New York Consortium in Evolutionary Primatology New York NY USA
3. Department of Psychological and Brain Sciences University of Massachusetts Amherst Amherst MA USA
4. Junior Research Group of Primate Kin Selection Department of Primatology Max Planck Institute for Evolutionary Primatology New York NY USA
5. Behavioral Ecology Research Group Institute of Biology University of Leipzig Leipzig Germany