Adriano Chiarello received a PhD in ecology from the University of Cambridge, England, in 1998. Since 1990´s he has studied mammal ecology and conservation, and from 1995 on he has investigated the maned sloths (Bradypus torquatus) in the Atlantic forest of Brazil. Some of the most relevant results published thus far on this species include aspects on diet, activity and ranging analyses, the assessment of translocation as a conservation alternative, the discovery of sexual dimorphism and conservation genetics. His most recent study reviewed and updated the geographic distribution and the habitat preferences of this species. Currently he is teaching Conservation Biology in the University of São Paulo at Ribeirão Preto, Brazil.