Colossal's Dire Wolves Are Fully Grown and Hunting Together

Colossal Biosciences reports its three dire wolves — Romulus, Remus and Khaleesi — have reached adult size and are hunting together while living as a pack under close supervision.

Colossal displayed new footage at its Dallas headquarters showing its dire wolves moving through snow and eating together. The company says the animals have reached full size and are forming coordinated hunting behavior. The trio now live together as a pack on a managed site and remain under close supervision by Colossal staff. Colossal is treating these animals as functional, mature specimens while continuing internal planning and care. Key details: - Colossal identifies the three animals as Romulus, Remus and Khaleesi, living together as a pack on a roughly 2,000-acre site and cared for by a team of about 10 staff. - Company footage shown at a Dallas facility reportedly shows the animals hunting in coordinated groups and sharing meals; the team describes ongoing refinement of the final steps of hunting. - The wolves recently completed comprehensive annual exams, including anesthesia, CT and MRI imaging, and blood work, with Colossal reporting healthy markers and mature weights. - Colossal says it introduced 20 targeted genetic edits into a gray wolf genetic background to restore size and hair traits associated with dire wolves and emphasizes making minimal edits for function and safety. - The company reports planning to expand the population, build additional facilities, and refine husbandry practices; staff describe a seasonal "fast and gorge" feeding pattern adapted to the animals' behavior. Summary: Colossal presents these animals as functionally mature and sees coordinated hunting and stable health checks as supporting internal plans to grow the pack and build more capacity. The company is continuing ecological and regulatory planning related to the project. Undetermined at this time.