Indigenous people live in small groups or tribes. They build their homes from trees and palm leaves. They have their own spiritual beliefs. Rubber tappers also live in the rainforests of Brazil. They are not Indians but have learned to take rubber from rubber trees without killing the trees.
Rainforests help control the world's climate.
In the rainforest, it rains a lot and is very hot. When it rains, the heat makes the rainwater evaporate back into the air - this means it's recycled. Rainwater in the Amazon an be recycled five to seven times. The clouds that cover the rainforests around the equator reflect the sun. Rainforest canopies also absorb carbon dioxide, which is a gas in the atmosphere.