the study looked at two groups of capuchin monkeys living in the Caatinga, a semi-arid ecosystem in northeastern Brazil. The scientists discovered that collective interactions such as grooming and ...

The project was coordinated by Ottoni, who in the late 1990s led the first studies in Brazil on tool use and social learning by capuchin monkeys at the Tietê Ecological Park in the state of São ...

A vast expanse of barren white sand dunes enclosing vast freshwater lagoons, Brazil's Lençóis Maranhenses is a place of ...