Maggie finds a caterpillar crawling on the floor and starts playing with it. She carries it away from Gerald to keep it safe. She then stumbles upon a pop-up book that illustrates the different stages in a butterfly's life cycle: caterpillar (larva), chrysalis (pupa), and adult (imago).

Caillou and his class visit the butterfly conservatory. There, they learn about the different stages in a butterfly's life cycle: caterpillar (larva), chrysalis (pupa), and adult (imago).

Beakman explains what metamorphosis is and which animals use it using video and animated clips. Then he explains the frog and butterfly metamorphosis stages.

Caillou introduces Rosie to ants and explains that they're harmless. He then shows Rosie a caterpillar and explains to her, at a very high level, how it turns into a butterfly.

Heimlich hatches from his chrysalis and turns into a "beautiful" butterfly. This clip illustrates two of the life cycles of a butterfly: chrysalis and adult.