Deinonychus is a Dromeosaur from the middle Cretaceous period. They where small compared to the other dinosaur that lived at the time, but it lived in packs that would make up for there size. They would have a alpha leader and omegas in the pack. Each member would have an importants in a hunt. Spite there terrible appearance they would been good parents and protect there young. There main prey would be the small dinosaur Tenontosaurus but if they had the chance hunt the young from the larger game like Astrodon. Deinonychus and many of the dinosaurs that lived during this time where very successful because many of there fossils have been found across the United States.