Amazon Rainforest Animals, Plants And Sounds - Full Nat Geo Documentarybr More than half of the world's species of plants, trees and animals are found in the rainforest (sometimes also spelled as "rain forest"). Tropical rainforests (especially the Amazon) support a very broad array of fauna, including mammals, reptiles, birds and invertebrates, with an awesome variety of jungle sounds. Mammals may include primates, felids and other families. Reptiles include snakes (some of them pretty venomous), turtles, and other families. Millions of species of invertebrates are found in this impressive ecosystem.