Is the butterfly good or bad？

Baby butterflies are called caterpillars.

Most caterpillars are bad for trees, becasue they like eating leaves.

But some caterpillars are good becasue they like eating small bugs. They are good for trees.

When caterpillars grow up, they become butterflies.

Most butterflies may fertilize flowers when they collect nectar from flowers to flowers. This will help the nature as well.

Butterflies are really the beauty-carriers!