The transformation from caterpillar to butterfly is one of the most exquisite in the natural world. Within the chrysalis, an inching, cylindrical eating machine remakes itself into a beautiful flying creature that drinks through a straw. This strategy—known as holometaboly, or complete metamorphosis—partitions youngsters and adults into completely different worlds, so that neither competes with th
![3-D Scans Reveal Caterpillars Turning Into Butterflies](https://cdn-ak-scissors.b.st-hatena.com/image/square/8e0d3375ac2f666192894c52a9dd914f23c3dccf/height=288;version=1;width=512/https%3A%2F%2Fi.natgeofe.com%2Fn%2F92bc9977-8742-4f37-a133-9ab163fa25f3%2FChrysalis_1_16x9.jpg%3Fw%3D1200)