<human>:  How do butterfly cocoons turn into caterpillars?
<bot>: The process of a butterfly transforming from a cocoon into a caterpillar begins when the butterfly larvae spin a silk cocoon around itself. Inside the cocoon, the butterfly goes through a process of metamorphosis, in which its body breaks down and reforms into an entirely new life stage. Eventually, when the process is complete, the butterfly emerges from the cocoon in its new form as a caterpillar.