The caiman lizard is a medium sized species of lizard, natively found in the jungles of South America. The caiman lizard is powerfully built and is one of the largest lizard species on the American continent. The caiman lizard can be found inhabiting the rainforest and swampland areas of South America in the countries of Brazil, Colombia, Ecuador and Peru. Caiman lizards are most commonly spotted in areas which are flooded as they are very aquatic creatures.