In 2025, Colossal Biosciences produced three genetically engineered dire-wolf pups—Romulus, Remus, and Khaleesi—after reconstructing the genome from DNA recovered from a 13,000-year-old tooth and a 72,000-year-old skull. Machine-learning models assembled degraded sequences, which were compared with the gray-wolf genome; researchers then made 20 edits across 14 genes in gray-wolf cells before using domestic dogs as surrogates.[1][3]
The achievement is not a literal recovery of an intact extinct genome: it is a living proxy created by targeted edits to a related species. Its strategic value lies in combining ancient-DNA recovery, computational genome completion, multiplex CRISPR editing, embryo production, and surrogate gestation—capabilities that could support lunar biobanks, genetic rescue, disease-resistant crops, engineered microbes, and restoration of lost terrestrial ecosystems. The proposed mammoth programme also illustrates how engineered organisms might influence climate systems, though ecological release remains unproven and high-risk.[1][2][10]
The Ark team should establish a genomic-restoration workstream: preserve redundant DNA, cells, embryos, seeds, and microbial cultures; develop AI-assisted reconstruction pipelines with provenance and uncertainty tracking; and maintain reference genomes for keystone species and essential food organisms. Monitor Colossal’s mammoth, thylacine, and dodo programmes, while requiring independent validation of genome accuracy, phenotype, fertility, welfare, ecological safety, and containment before any restored organism is considered for lunar or post-catastrophe deployment.[2][3][6]