Rainforests are lush, warm, wet habitats. Trees in the rainforest are so tall because they have to compete with other trees for sunlight. Kapok trees in the rainforest can grow up to 200 feet tall. There are four layers of a rainforest. The emergent layer has the tallest trees. The canopy is the leaves and branches of the trees that touch one another to create a cover. Most animals in the rainforest live in the canopy. The understory is made up of smaller trees and plants that do not need much sunlight to grow. The forest floor is the bottom layer of the rainforest where only small trees and plants that do not need light can grow. Rainforests can be found in Africa, Asia, Australia, Central America, and South America. They are typically found near the equator. The Amazon Rainforest is the largest and is about the size of the continental United States. Most of the world's animals live in the rainforests. These animals include; vampire bats, anacondas, Bengal tigers, orangutans, chimpanzees, dragonflies, and tree frogs. Many of the plants and animals that are in rainforests have not been discovered yet!