Book excerpt: If you could have any dinosaur body part, which would you choose? What if you woke up one morning and you had sprouted a dinosaur body part overnight? What If You Had T. rex Teeth? -- the next imaginative book in the What If You Had series -- explores what would happen if you looked in the mirror and saw that you had become part dino! From a Velociraptor's sharp sickle-tipped toes to a T. rex's giant curved teeth, and from the body armor of an Ankylosaurus to the long neck of a Brachiosaurus -- discover what it would be like if you had one of these wild dinosaur parts! Readers will also learn what makes a dinosaur a dinosaur and why they aren't still around today.