Our topic for today is the life cycle of a butterfly. A butterfly lays eggs on the leaves of a plant. These eggs hatch, and young ones, called larvae or caterpillars, come out of the eggs. The caterpillar first feeds on the eggshell from which it is born. Then, it starts feeding on the leaves and begins to grow. The caterpillar sheds its skin several times to allow for growth. Once the caterpillar is big enough, it stops eating and forms a protective layer around itself. This stage is called the chrysalis. During this stage, the caterpillar is now called a pupa. The pupa remains motionless inside the chrysalis and undergoes a series of changes. After about 15 days, a beautiful adult butterfly emerges from the chrysalis. When the butterfly first emerges, its wings are small and wet. The butterfly pumps fluids into its wings to strengthen and expand them. After a few hours, the wings become strong enough, and the butterfly is able to fly. These series of changes in the life cycle of a butterfly are called metamorphosis.