There is speculation about did the Utahraptor hunted in packs. There might not be clear evidence but there is a scientist that suggests some kind of social behavior.
Did The Utahraptor Hunt In Packs? Inconclusive, there is very little evidence to be certain. It is too difficult to understand the social behaviors of an extinct species. There is a group of fossilized Utahraptors in Utah, of various ages, this could be a positive finding to suggest that Utahraptors were indeed grouping and showing pack behaviors. Social behavior in carnivorous dinosaurs is still debated amongst specialists. Certainly, they fed together on the occurrence, but it’s not cleared if they hunted together let alone lived together.
Let us dive deep into this possible evidence to understand their social behavior
Group Of fossilized Utahraptors In Utah
10 or more Utahraptor fossils were found in Utah. The group had various ages from adults to juveniles. It was found that this group of dinosaurs died due to quicksand formation. Kirkland’s main question was to understand whether these Utahraptors showing pack hunting or social behavior what so ever.
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Kirkland suggests that the quicksand that killed the group of Utahraptors found an herbivore stuck in the quicksand and attack the helpless prey, if it is true this can be strong evidence for the species of Utahraptor indicating some sort of pack hunting behavior.
Deinonychus Pack Hunting Behavior
The scientists are quite positive of Deinonychus had shown pack hunting behavior. A fully complete skeleton of Tenontosaurus was discovered and there were multiple fossilized Deinonychus teeth, these are quite strong evidence to support pack hunting behavior from Deinonychus.
Tenontosaurus was the primary diet of a Deinonychus which is quite a large prey for such a small predator. Scientists suggest Deinonychus was a pack-hunting species allowing them to have more numbers to take such large prey.
The reason I am mentioning Deinonychus is there were from the same family as Utahraptors (Dromaeosauridae) finding strong evidence of this kind of behavior in the same family can also be a positive finding for the Utahraptor, the problem is Utahraptors did not need to have any pack hunting behavior there were the biggest Raptors in the Dromaeosaur family.
Deinonychus showing social behaviors such as pack hunting is could be due to how small and weak they were as alone, therefore they were more advantages as a group, this isn`t the case with Utahraptor though.