It may seem as though sharks are perfectly equipped to defend themselves and catch prey. However, in an environment where competition for food is fierce and sharks' predators are equally well-adapted, sharks need to have a few tricks to fall back on. From the cookiecutter shark, which tricks its much larger prey into thinking it's a tiny fish, to the wobbegong shark, which lays flat on the ocean floor to camouflage itself, readers learn about the...