Utahraptor: -

One of the deadliest predator, Utahraptor, also meant Utah’s Predator. The Utahraptor had the power of hind limbs bestowed on itself. Supposedly residing in the region of Utah, these raptors simply didn’t believe in the term ‘happy neighbours’. These species was not very fond of any other. Size wise they were not much big to their competitors but who sees size when one has an ego which touches the sky? The biggest known Utahraptor was supposedly the size of a Human. They could have weighed up to 500 kgs or 1,100 pounds.