1. Japanese Giant Hornet
These guys can grow to about three inches with a 0.24-inch stinger. In Japan, they kill about 30 to 40 people each year.
2. The Pacific Viperfish
This deep-sea monster's jaws are so big that it literally can't close its own mouth.
3. The Camel Spider
It's actually an ancestor of scorpions (and not a real spider). Its jaws are about 1/3 of the side of its body.
4. Star-Nosed Mole
The star-like appendages on its nose give it its name, and they're incredibly sensitive. Called "Elmer's organs," they have more than 25,000 tiny sensory receptors.
5. Giant Isopod
These guys are prehistoric; they've been around, largely unchanged, for thousands of years. They can also go for four years without eating.