From three-inch fang blennies to thirty-foot prehistoric crocodiles, from gaboon vipers to Neanderthals, Bite is a fascinating journey through the natural, scientific, and cultural history of something right in front of—or in—our faces: teeth. In Bite, zoologist Bill Schutt makes a surprising case: it is teeth that are responsible for the long-term success of vertebrates. The appearance of teeth, roughly half a billion years ago, was an adaptation that allowed animals with backbones, such as fish, amphibians, reptiles, birds, dinosaurs and mammals—including us—to chow down in pretty much every conceivable environment. And it’s not just food. Tusks and fangs have played crucial roles as defensive weapons—glimpsing the upper canines of snarling dogs is all it takes to know that teeth are an efficient means of aggression. Vampire bats use their razor-sharp teeth to obtain a widespread but generally untappable...