- Not Exactly Rocket Science
3-D Scans Reveal Caterpillars Turning Into Butterflies
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 the other. It’s such a successful way of life that it’s used by the majority of insects (and therefore, the majority of all animals). Butterflies, ants, beetles and flies all radically remodel their bodies within a pupa as they develop from larvae to adults.
But what goes on inside a pupa? We know that a larva releases enzymes that break down many of its tissues into