Even though they never overlapped with mankind, dinosaurs have fascinated researchers, historians, and academics alike since they vanished from Earth around 66 million years ago. But have you ever wondered what makes a dinosaur truly terrifying? It’s a thrilling cocktail of massive size, bone-crushing jaws, and razor-sharp claws. Throw in some extraordinary adaptations, and you've got a recipe for the most fearsome and formidable creatures to ever roam the Earth.
Click through the following gallery to discover the most dangerous dinosaurs to once rule the world.