PRIMARY RAINFOREST, Amazon, near Boavista, northern Brazil, South America. Traditional Macuxi tribal hut on the top of a hill. Ecological biosphere and fragile ecosystem where flora and fauna, and native lifestyles are threatened by progress and development. The rainforest is home to many plants and animals who are endangered or facing extinction. This region is home to indigenous primitive and tribal peoples including the Yanomami and Macuxi.