Since the fall of the dinosaur, overbearing size has no longer assured survival. Smaller creatures are more nimble, require less nourishment, and can conceal themselves more easily. Homo sapiens, currently the most dominant species on the face of the earth, have used their intelligence to create tools, stockpile food, and produce late-night talk shows. Animals greater in size rarely pose a threat to human survival. Microscopic bacteria on the other hand cause millions of deaths each day. We have always feared the large beasts: grizzly bears and great white sharks, when really, we should be watching out for smurfs and guinea pigs.