A food chain of the jungle can be summarized through the example of a producer, such as a plant, being eaten by a monkey, which is in turn preyed on by a jaguar. Another example is a centipede that hunts insects, but is later consumed by a toucan.
Food chains and food webs demonstrate how energy passes through an ecosystem, although a food web is a more thorough interpretation. In it, two broad categories exist: autotrophs, which produce complex organic chemicals through sunlight and nutrients, and heterotrophs, which must consume the autotrophs for growth.
At the top of the food chain is the apex predator, although even apex predators are sometimes preyed on by other animals. This usually happens when the apex predator is vulnerable, such as in youth or during an injury.