Milo was a small, curious monkey. He lived in a big rainforest with tall green trees. One morning, he found a strange, old box near the roots of a tree. The box had a note that said, "Find the secret of the layers." Milo wanted to solve this mystery.
Milo climbed up to the first layer, the canopy. It was full of leaves and bright flowers. He saw birds eating fruit and butterflies resting on branches. "This layer is a good shelter for many animals," he thought. Then he went higher to the emergent layer, where the tallest trees touched the sky.