Image: Deinonychus attacking
Deinonychus attacking a plant-eater.
- Michael Skrepnick
- © Michael Skrepnick
This illustration of Deinonychus antirrhopus hunting an plant-eater is based on fossils from Montana. These fossils provided some evidence for pack-hunting as all these dinosaurs apparently died at the same time. However, it is also possible that their deaths were due to fighting over the recent kill, rather than co-operative hunting.