Near the eponymous town in Minas Gerais is the Caratinga Biological Station. The private reserve is a research centre for primates and home to a species of woolly spider monkey called the muriqui; the largest primate in South America. Three other rare primates can also be found here: brown capuchin, brown howler monkey and buffy-headed marmoset. In addition, the area boasts a wide variety of endemic birds and easily spotted mammals such as the brown-throated three-toed sloth. It is an important location for New World primate enthusiasts.