Scientists challenge the dream of bringing extinct species back to life

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Scientists question whether biotechnology can truly reverse extinction, despite advances in ancient DNA sequencing, genome analysis and gene editing. The debate concerns the scientific and practical limits of bringing extinct species back to life.

Could extinction itself become a thing of the past? Advances in biotechnology, including ancient DNA sequencing, genome analysis and gene editing, have led some to believe that it may be possible to bring extinct species back to life.