Discover the top-ten most lethal dinosaurs to have roamed the earth—which are not as obvious as you might think! The new Top Ten series introduces a wide range of subjects to children in a way that plays off their innate sense of excitement and curiosity. Most Dangerous Dinosaurs presents the deadliest dinosaurs ranked from 10 down to 1, some of which may surprise you. You'd probably imagine large carnivores, such as the T-Rex, but did you know that brute force doesn't always prevail? Sometimes an unsuspected secret weapon used at the right time can be more effective and destructive. So even a peaceful herbivorous dinosaur could turn into a deadly machine! Fun facts and stats show why each dinosaur is worthy of its ranking.