the Earth's surface, they can provide habitat for between 50 and 90 percent
             of its plant and animal species. In 1990, tropical rainforests totaled some 1.7 billion hectares."
             (Forest Alliance of British Columbia, 1996) Half of the world's rainforests lie within the borders of
             A tropical rainforest has three layers: the forest floor, the understory, and the canopy. The forest
             floor has poor soil. Mainly insects live on this layer, although large mammals like gorillas and
             jaguars are also found there. Many smaller animals, including anteaters, lemurs, and tree kangaroos
             live in the understory. This is also where many small trees and shrubs are found. The canopy, or
             top layer, is made up of the tops of trees which can grow to be over 200 feet high. Many tropical
             birds, monkeys, apes, snakes, and other animals live in the canopy.
             Temperate rainforests are much younger than their tropical relatives. Most temperate rainforests
             ...