They emerge from our deepest nightmares — horrors of the animal world. Which animals scare us the most and why? With their sharp teeth and long claws, these animals are the stuff of legends. We used to compete with wolves for food, and the stakes were high. Is that why we still fear that eerie howl we hear in the night? The movie Jaws scared many beach goers out of the water — and we can hardly take a dip in the ocean without thinking about the Great White. But which animal is the scariest, the most gruesome, the Most Extreme Horror? Find out on this top ten countdown!