Unlocking the "Gateway to Resurrecting Prehistoric Creatures": 12,500-Year-Extinct Dire Wolves Brought Back to Life
Release time:
2025-04-11
When the majestic dire wolves from *Game of Thrones* leap from fiction into reality, a "species resurrection revolution" driven by genetic technology is advancing at unprecedented speed. U.S. biotechnology company Colossal Biosciences recently announced the successful revival of the dire wolf (*Canis dirus*), extinct for approximately 12,500 years, using breakthrough gene-editing and cloning techniques. The birth of three dire wolf cubs marks a critical milestone in humanity’s "de-extinction" efforts.
Reviving the "Ice Age Apex Predator" with Millennia-Old DNA
Colossal Biosciences’ scientists extracted DNA from a 13,000-year-old dire wolf tooth and a remarkably preserved 72,000-year-old dire wolf skull. Utilizing ultra-low-temperature nano-extraction technology, they obtained a 92% complete dire wolf genome—a first in scientific history. Through advanced CRISPR-Cas9 gene editing, ancient DNA fragments were integrated into modern gray wolf oocytes. After 217 embryo transfer attempts and a complex genetic modification and cloning process, three healthy cubs were successfully born via surrogate mothers.
The Permafrost "Vault of Life"
Beyond dire wolves, the company has cultivated pluripotent stem cells for woolly mammoths using DNA fragments from Siberian permafrost-preserved remains. Their goal is to birth a mammoth-elephant hybrid via Asian elephant surrogates by 2028.
Other breakthroughs include:
- Russian researchers led by Anastasia Shatilovich at the RAS Institute of Soil Science revived 46,000-year-old nematodes from Siberian permafrost; these tardigrades resumed metabolism and reproduced after thawing.
- A joint team from Japan’s RIKEN Institute and Russia’s North-Eastern Federal University is reconstructing genes from a preserved woolly rhinoceros calf found in Yakutia’s permafrost.
In an interview, Colossal CEO Ben Lamm stated, “We prioritize species driven to extinction by human activity and whose ecological niches remain vacant.” The company has partnered with governments in Alaska and Siberia to establish a 1,600-square-kilometer prehistoric species ecological reserve. Their "de-extinction wishlist" also includes the dodo bird and the thylacine (Tasmanian tiger).
These advancements demonstrate the feasibility of gene-editing and cloning in resurrecting extinct species, attracting increased funding and scientific collaboration. This progress elevates genetic technology’s potential in biodiversity conservation, biopharmaceuticals, and beyond, heralding a new era of ecological restoration and innovation.
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