The document describes the four stages of development from an egg to a butterfly: 1) The egg hatches into a caterpillar that eats leaves and molts multiple times as it grows. 2) The caterpillar then forms a chrysalis or pupa and hangs from a leaf or branch. 3) Inside the chrysalis, the caterpillar transforms into a butterfly which emerges with damp wings. 4) Once its wings dry, the new butterfly can fly, find food and a mate to continue the life cycle.