For animals in the wild, a good defense is the key to survival. Some animals use common defenses like camouflage to hide from predators or speed to make a quick escape. Physical features like horns, claws or a mouthful of sharp teeth can come in handy when fending off a predator's attack. Other animals have developed some unique, strange and even disgusting methods of defense to help them survive in the wild.  

Why is the hairy frog nicknamed the "wolverine frog"?
How is a mantis shrimp able...