Editing Amazon basin (section)

=== Amphibians ===
More than 1,500 species of [[amphibian]]s swim and are found in the Amazon. Unlike temperate [[frog]]s which are mostly limited to [[habitat]]s near the water, tropical frogs are most abundant in the trees and relatively few are found near bodies of water on the [[forest floor]]. The reason for this occurrence is quite simple: frogs must always keep their [[skin]] moist since almost half of their [[Respiration (physiology)|respiration]] is carried out through their skin. The high [[humidity]] of the rainforest and frequent [[rainstorm]]s gives tropical frogs infinitely more freedom to move into the trees and escape the many [[predator]]s of rainforest waters. The differences between temperate and tropical frogs extend beyond their habitat.