The rainforest of the Amazon basin is very rich in fauna. A variety of birds such as toucans, hummingbirds, birds of paradise with their brilliantly colored plumage and over sized bills for eating are found here. These birds also make loud sounds in the forests. Animals like monkeys, sloths, and ant-eating tapirs are found here. Various species of reptiles and snakes also thrive in these jungles. A number of crocodiles, snakes, and pythons are also found here. Anaconda and boa constrictor are some of the species of snakes. The basin is also the home to thousands of species of insects. Several species of fishes including the flesh-eating Piranha fish is also found in the river.