I am a biologist, M.Sc. in Ecology and Ph.D. in Anthropology with expertise in primatology. I am a Professor at the School of Sciences of the Pontifical Catholic University of Rio Grande do Sul in Porto Alegre, Brazil, and a Research Associate of the Department of Anthropology of the University of Illinois at Urbana-Champaign. I am interested in primate ecology, behavior, cognition and conservation biology and I have studied several species in the wild and published on all major New World monkey radiations. I am a member of the Neotropical Section of the Primate Specialist Group/SSC/IUCN and a former President of the Brazilian Primatological Society and Director for Research of the Latin American Primatological Society. I have edited two books, and I am a co-editor of the journal Neotropical Primates, associate editor of International Journal of Primatology, Tropical Conservation Science, member of the editorial board of American Journal of Primatology, Primates and Studies on Neotropical Fauna and Environment. In 2009 I launched (and re-launched in 2017) the campaign “Protect our Guardian Angels” to inform laypeople and the media about the role of sentinels played by monkeys in the cycle of sylvatic yellow fever. I was a winner of the 3rd Ecofuture Award of Education for Sustainability given by Instituto Ecofuturo/Brazil in 2012.