World's Deadliest: Jaws & Sins

From gluttonous frogs to lusty seals to angry angry hippos, these beasts exhibit extreme behaviors that make them the most outrageous and dangerous sinners in the animal kingdom.

Some have razor sharp teeth that can slice thick layers of muscle, straight to the bone. Others have jaws that can crush your skull with a single snap. And others are equipped with fangs to squirt neurotoxins directly into your veins.