The number of different kinds of insects in the world seems almost endless. There are millions. The larva of many of these insects feed on trees and bushes at least until they develop into adults. One would think, then, that we wouldn't have any trees left, since they are so unfairly outnumbered by such hordes.

 REF.: Bernhardt, Peter. 1989. Wily Violets & Underground Orchids: Revelations of a Botanist. pp. 79.  Photo: Caterpillia eating_pixabaycom