Fernando A. S. Fernandez holds a degree in Biology from the Federal University of Rio de Janeiro (UFRJ). He got his Ph.D. in Ecology from Durham University, England, in 1993, with a thesis on the dynamics of rodent populations in coniferous forests. The following year, he was hired as a professor in the Department of Ecology at UFRJ. He founded the Ecology and Population Conservation Laboratory in 1995. In 2010, Fernando launched the concept of refaunation, and from then on coordinated the Refauna project, which reintroduced populations of agoutis, howler monkeys and tortoises in the Tijuca National Park, in Rio de Janeiro. He currently teaches population ecology and conservation biology in the Undergraduate Course in Biological Sciences and the Postgraduate Course in Ecology at UFRJ.