Can You Tell a Stegosaurus from an Ankylosaurus?

Can You Tell a Stegosaurus from an Ankylosaurus?

A dinosaur with an armored back chomps on plants. It swings its tail at a hungry meat eater. Was that a Stegosaurus? Or was it an Ankylosaurus? These dinosaurs looked similar, but they were very different. Read this book to become an expert at telling these look-alikes apart!