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Colossal Biosciences Buys Cloning Leader Viagen

Colossal Biosciences acquired Viagen Pets and Equine to combine cloning expertise and de-extinction goals, enabling breakthroughs with 80% cloning success rates in endangered species.

  • Colossal Biosciences acquired Viagen Pets and Equine, marking Colossal's first acquisition since its 2021 launch with Viagen operating as a wholly-owned subsidiary.
  • Earlier this year, Colossal Biosciences made headlines after de-extincting dire wolves following 12,500 years of extinction and had drawn attention in 2021 for plans to bring back the woolly mammoth.
  • Viagen Pets and Equine, founded 2002 , has cloned 15 species including black-footed ferret and Przewalski's horse, optimized protocols with 80% success, and biobanked over 40 species including 22 threatened.
  • Viagen President Blake Russell will continue to run operations after a 25-year career, and Ben Lamm, Founder and CEO of Colossal, said the merger advances biodiversity-saving efforts.
  • Combining Viagen's cloning stack with Colossal's resources could scale conservation cloning, as Viagen's cryopreservation expertise will fuel Colossal's Bio Vaults and leverage Roslin Institute of Edinburgh licensing.
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Dallas News broke the news in Dallas, United States on Tuesday, November 4, 2025.
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