The bodies of meat-eating dinosaurs varied considerably, so their hunting methods would also have been very different. Small agile dinosaurs would have pursued their prey, catching them as they ran and dodged. Some of them probably hunted in packs.
The very large carnivores probably lived alone and attacked their large prey by ambush. We do not know enough about dinosaur anatomy to say whether they chased their prey for long distances, or whether they made short dashes like modern reptile predators, such as crocodiles and monitor lizards.
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