This summer my nephew and I decided to collect caterpillars.little did we know they slowly started changing right before our very eyes! they love to eat milkweed plants that grow wild in our backyards,parks. just about everywhere. so we had collected 14 caterpillars and they ate and grew,ate and grew. until one day they were caterpillars any more. my nephew was trying to look for them but he didnt fully understand. I noticed on top of the bug cage that there were cocoons. until one day they...