Plenty of predators use their monstrous jaws and piercing claws to attack their prey, but many creatures wield these adaptations as defensive mechanisms, too. Readers may be surprised that an animal as cute as the red panda can fiercely protect itself from a snow leopard and that there's a kind of frog that can jab its version of a bony claw through its skin. Every animal needs to have some kind of weapon if they want to survive in a wild world. Illustrative...