That's all the waste the butterfly, née caterpillar ... Here's what you might not know about what's inside a caterpillar's "cocoon." Contrary to popular belief, this is not a cocoon.

The outer skin hardens, and, over time, the caterpillar develops its body inside the cocoon. It digests itself and rebuilds itself, too. It eventually transforms into a beautiful butterfly.

Contrary to popular belief, this is not a cocoon. Only certain ... starting from the inside out. After one week, the digestive system of the butterfly is well on its way. And by day 16, the ...