One close-up look at the humongous larva of the regal moth and you'll see how it earned its nickname “the horned devil.”
To outwit potential predators, this moth larva actually pulls a Jekyll-and-Hyde routine and blows itself up into a pretty good imitation of a snake.
When someone mentions deadly bugs, caterpillars probably aren't the first critters that spring to mind. But you'd better put this dude on your “do-not-touch” list.
Make no mistake: this little green guy looks innocent enough from a human's point-of-view... but to its unfortunate prey, it's a ferocious killing machine.