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The bulky pelycosaur Nasutometrodon has developed an interesting symbiotic relationship with a few hybrid flocks, like Tarbognathus, Compsocaulus, or Sinokotaraptor. After the Nasutometrodon has taken down its prey and eaten its fill, it will allow the smaller carnivores to scavenge the carcass. In return, the tiny carnivores will eat parasites and biting insects that plague the Nasutometrodon. The status and health of a Nasutometrodon can be determined by the number of tiny theropods following it. Individuals of this species complete for food, territory, or mates by locking their frills and twin horns together in a contest of strength.