Rainforests are found in South America, Africa, Southeast Asia, and parts of Australia and India. They contain dense forests filled with trees, plants, and animals like gorillas, jaguars, butterflies, and frogs. Rainforests are threatened by deforestation when humans cut down trees, which can cause soil erosion and pollution that harms wildlife. There are two main types of rainforests - tropical rainforests near the equator and temperate rainforests along coastal regions.