The Butterfly I have a favourite tree in my backyard, which I take care of every day. It's still young. On Monday, I see something unusual on my tree. There is a small egg stuck to a leaf. I see no egg on Tuesday There is a tiny caterpillar instead. It must be from the egg By the end of the day, two leaves on my tree are gone. I can see that the caterpillar. Tha caterpillar has turned into a cocoon. It sticks between the twigs without moving. The sun shines brightly now. I can see that something is moving inside the cocoon. Look! is going to be a butterfly.