Utahraptor was the second biggest predator known from early Cretaceous North America. It was also the largest Dromeaosaur found up to date. It has a toe claw 1 foot long, and hand claws at least 5 inches. It is a very smart dinosaur, and could probably come up with complex attack plans. It was around 25 feet long, 8 feet tall at the top of its head and weighed around 1600. It could run from 25 to 30 mph. No direct proof of feathers has been found on Utahraptor, but it is though that it does have feathers. Also, unlike with most Dromeaosaurs, it is though that Utahraptor is a mostly solitary, or at least hunts in pair. This isn't really necessary however. The main prey of Utahraptor, Iguanadon and Tenontosaurus, isn't much bigger than the raptors, and would be a fairly easy kill.