Tropical rainforests aid a greater number and diversity of animals than any other biome. One of the reasons for this great variety of animals is the constant warmth. Tropical rainforests also provide a nearly constant supply of water and a wide variety of food for the animals.
Small animals, including monkeys, birds, snakes, rodents, frogs, and lizards are common in the tropical rainforest. Many of these animals and a multitude of insects never set foot on the ground. The animals use the tall trees and understory for shelter, hiding places from their predators, and a source of food.
There are animals that do not appreciate being noticed. These animals may use camouflage to blend in with their environment. This is highly useful to avoid being captured by another animal. They also may use camouflage to hide while they stalk their prey. A brightly colored animal signals to others not to bother him, as he is poisonous.