This ground level layer is made up of moss, fungi, and decomposing leaves. The decomposing leaves, which have fallen from the layers above, put essential nutrients back into the soil. Animals and insects alike forage for food on this layer. The four layers work together to create an environment that is self-sustaining for all of the plants and animals within. The preservation of these unique forests is very important.
Rainforests produce much needed oxygen, medicinal plants, and food.
There is much to be learned from the forest that remains unstudied. Unfortunately the welfare of rainforests is in danger. Large areas of rainforest are being cut down or burned to clear areas, which are often used to raise cattle for beef products. Another threat to rainforests are animal buyers. Scientists use monkeys found in rainforests for scientific research, other animals such as jaguars are sought after for their fur.