Little was known about life up in the canopy of tropical forests until biologists started using ropes and pulleys to climb their way up. Treetops in the tropics reach so high that it was nearly impossible to explore.
Scientists now know that about 90% of all of the organisms in a rainforest are found in the tree canopy. In the tropics, trees and plants stretch upwards as high as they can to get some sun, which barely reaches the forest floor. At the top, the brilliant sunlight hits everything, re
