Nature is, above all, profligate... [Its schemes] are the brainchild of a deranged manic-depressive with limitless capital. Extravagance. Nature will try anything once. That is what the form of the insect says. No form is too gruesome, no behavior too grotesque. If you're dealing with organic compounds, then let them combine. If it works, if it quickens, set it clacking in the grass; there's always room for one more; you ain't so handsome yourself. This is a spendthrift economy; though nothing is lost, all is spent.
Annie Dillard, Pilgrim at Tinker Creek