The ecosystem of a forest consists of living and non-living things that interact with each other. Living things include various plants and animals, while non-living things comprise soil, air, humidity, water and sunlight. The vertical structure of a rainforest consists of emergent trees over 130 feet tall, a canopy of trees 60 to 129 feet high, an understory below 59 feet containing smaller plants and trees, and a forest floor home to animals like jaguars. Producers such as trees and shrubs provide food for consumers like herbivores and carnivores, with food chains linking producers to decomposers and food webs forming from interconnected food chains.