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A frog is first made from an egg that is laying in clumps. then it will become a tadpole. (what baby frogs are called).External gills on their heads help the baby tadpoles filter air out of the water in which they are living. As they grow, the external gills drop away and their internal gills develop fully. Some animals in the rain forest have adapted to a limited diet so they don't have much competition for food. Rain forest animals and insects sometimes use bright coloring and distinctive markings to scare predators. Some of these creatures, such as poison dart frogs, are dangerous, but some aren't.