The group of dinosaurs named ankylosaurids were built for battle. They were large, strong animals covered with armor plates, perfect for defending themselves against the claws and teeth of carnivorous dinosaurs. Many also had sharp horns and a club-like tail they used to fight off other dinosaurs. They were the tanks of the dinosaur world. Despite their fearsome appearance, Ankylosaurids were plant eaters that did not attack other animals. The informative text is paired with vibrant illustrations of Ankylosaurus and other armor-plated herbivores.