Endangered Przewalski's horse, Equus pzrewalskii, cloned from historically cryopreserved cells
Two endangered Przewalskis horse stallions were cloned from fibroblast cells cultured and cryopreserved in 1980. These stallions are clones of a male that lived from 1975-1998 that pedigree analyses identified as a genetically valuable male for present-day conservation breeding. This is the first time that multiple healthy clones have been produced for an endangered species.
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