Those cute dire wolves are forming a pack.

If you remember, Colossal Biosciences , the company seeking to bring back the woolly mammoth , revealed in April 2025 it had successfully birthed a trio of dire wolf puppies .

Using dire wolf DNA extracted from fossils – yes, dire wolves aren't just the stuff of "Game of Thrones" fiction , they existed tens of thousands of years ago – the Colossal researchers created dire wolf genomes. They used those as a guide to editing a gray wolf genome to express dire wolf traits. The resultant fertilized dire wolf eggs were implanted into and born by surrogate dog mothers, resulting in the successful resurrection of an Ice Age-era species.

Two male dire wolves, Romulus and Remus, born in October 2024, are approaching their first birthday – e

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