Colossal Biosciences
Colossal Biosciences is a genetics and biosciences company using advanced gene-editing to bring back extinct species and prevent endangered ones from disappearing — it has already produced engineered 'woolly mice' and announced dire-wolf pups (Romulus, Remus, Khaleesi), with the woolly mammoth, thylacine and dodo as flagship targets. Founded by serial entrepreneur Ben Lamm and geneticist George Church, it frames de-extinction as a tool for rewilding ecosystems and restoring lost biodiversity. The same gene-editing and reproductive technologies it builds for de-extinction could spin out into conservation, biotech and human-health applications.