General Article Northern white rhinos could be brought back from brink of extinction ‘within three years’ using lab-

Topic Selected: Biotech and Bioethics Book Volume: 352
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By Josh Gabbatiss

‘I do not want to witness northern white rhinos disappear in front of our eyes just because we did not care.’

IVF-ready embryos have been created using sperm from northern white rhinos in an unprecedented development that paves the way for the resurrection of the species.

The sperm was used to fertilise eggs from the closely related southern variety, and the resulting hybrid embryos have been frozen for implantation into surrogate mothers.

Northern white rhinos were left functionally extinct after the last male, Sudan, passed away in March, but their tragic demise has stimulated efforts to develop technologies that can bring them back from the dead.

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