Scientists Achieve Major Milestone By Resurrecting Dire Wolf

Scientists Achieve Historic Milestone in De-Extinction: The Return of the Dire Wolf

April 9, 2025

In a groundbreaking scientific achievement, Colossal Biosciences, a Dallas-based biotech company, has announced the successful de-extinction of the dire wolf (Aenocyon dirus), a species that vanished over 10,000 years ago. This marks the world's first successful de-extinction, bringing a prehistoric predator back to life.


Resurrecting the Dire Wolf

Utilizing advanced genetic engineering techniques, scientists extracted DNA from ancient dire wolf remains—a 72,000-year-old inner-ear bone and a 13,000-year-old tooth. By comparing these sequences with those of the gray wolf (Canis lupus), the dire wolf's closest living relative, researchers identified key genetic differences. Through precise gene editing, they introduced 20 specific genetic edits into gray wolf embryos to replicate dire wolf characteristics. These embryos were then implanted into domestic dog surrogates, resulting in the birth of three dire wolf pups: Romulus and Remus, born in October 2024, and Khaleesi, born in January 2025.


Celebrity Involvement and Cultural Impact

The project has garnered significant attention, partly due to the involvement of high-profile figures. NFL legend Tom Brady, who serves on Colossal's cultural advisory board, expressed pride in the team's accomplishment. Additionally, actors Sophie Turner and Kit Harrington, along with author George R.R. Martin—creators and stars of the "Game of Thrones" series, which featured dire wolves prominently—have invested in the project, highlighting the species' cultural significance.


Scientific Community's Perspective

While the achievement is celebrated, some scientists urge caution. Zoologists point out that the recreated animals are genetically modified gray wolves rather than true dire wolves, emphasizing the significant genetic differences between the species. Dr. Nic Rawlence noted that dire wolves belong to a different genus, and the degraded nature of ancient DNA poses challenges in accurately recreating the species.


Ethical Considerations and Future Implications

The de-extinction of the dire wolf raises important ethical and ecological questions. Critics argue that reintroducing extinct species could disrupt current ecosystems and that resources might be better allocated to conserving endangered species. Proponents, however, view this as a step forward in biodiversity restoration and a testament to human ingenuity. Colossal Biosciences aims to apply similar techniques to revive other extinct species, such as the woolly mammoth, the dodo and the Tasmanian tiger, potentially revolutionizing conservation efforts.


Conclusion

The successful resurrection of the dire wolf represents a monumental milestone in genetic science and de-extinction efforts. As Romulus, Remus, and Khaleesi grow under careful observation in a secure ecological preserve, the world watches closely, contemplating the profound implications of bringing the past into the present.


News Highlights:

Colossal Bioscience's Ben Lamm (left) and Joe Manganiello with the dire wolf puppies. Courtesy of Colossal Biosciences