Eastern gorilla
The eastern gorilla ("Gorilla beringei") is a critically endangered species of the genus "Gorilla" and the largest living primate. At present, the species is subdivided into two subspecies. Grauer's gorilla, formerly known as the eastern lowland gorilla ("G. b. graueri") is more populous, at about 3,800 individuals. The mountain gorilla ("G. b. beringei") has only about 1000 individuals. The International Union for the Conservation of Nature mentioned illegal hunting in its assessment of threats to the species.
Caratinga
Some 150 northern muriquis (Brachyteles arachnoids) live today at the Fazenda Montes Claros, near Caratinga. It is one of their last refuges. The muriqui is the largest monkey of the Americas and one of the most endangered primates of the world. Specialists cite the biological importance of the Fazenda Montes Claros, where three other primate species live along with the muriqui: the buffy headed marmoset, the black-capped capuchin and the brown howler monkey.