Incidentally, the Praying Mantis is actually a lesson in linguistics as well. When you hear the name, do you think "praying" or "preying?" Both spellings reveal something about the mantis--the first it's posture, and the second its behavior. The pronunciation is identical with either spelling, but the meaning changes with the spelling and both meanings are appropriate to the term. I found out this is called an "eggcorn." Nature has given us a lesson in linguistics.