There are over 450 species of reptiles wandering through the Amazon Rainforest. Among the smallest are lizards, iguanas and snakes. The largest is the caiman. They range from the Cuvier’s dwarf caiman (maximum male length five feet) to the Amazon’s largest predator, the black caiman (often exceeds 14 feet long). Most caimans you notice lying in wait along the shore are four to five feet. They look similar to an alligator and are part of the same alligatoridae family. Yet caimans are classified as a crocodilian.