Butterflies are all around us. It's hard to believe these majestic insects with impressive wingspans and beautifully colored and patterned wings were once creepy crawly caterpillars. How in the world does this transformation happen? This level 1 Reader gives kids an up-close look at exactly how a caterpillar becomes a butterfly. With bonus information including different types of butterflies and poisonous caterpillars, this reader is one of a kind.