A Mummy butterfly lays all her eggs,
Out comes the caterpillar, crawling on its legs.

The caterpillar is rather thin,
But then it eats till it bursts through its skin.

After growing nice and big,
The caterpillar climbs on a leaf or twig.

It makes a shell where it hangs inside,
Then the shell cracks, and the parts divide.

Inside the shell, a change was going on,
The form of the caterpillar now is gone.

When the shell opens, what comes out?
A beautiful butterfly fluttering about