Amazing CreaturesMouths are pretty weird when you think about it. They can even be kind of scary. In fact, they are supposed to be kind of scary because that’s the part that’s full of teeth and might just eat you, if you happen to run into a predator. Some mouths, however, are so terrifying they almost seem designed to make the prey run away in fear as fast as it can! From the horrifying water parasite to the shark of your nightmares, here’s the 20 Deadliest Animal Mouths That Will Give You Chills.