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Test tube embryo transfer may give near-extinct rhinos a second chance
Lab-made embryos are one step closer to saving a virtually extinct species. Scientists have successfully transferred a test tube rhino embryo back into a female for the first time, implanting the creation into a southern white rhino in Poland. The effort supports a theory that scientists can repopulate the near-extinct northern white rhino by fertilizing eggs from the two remaining animals in the species (both females that can't bear children) using frozen sperm from since-deceased males, with southern rhinos serving as surrogate mothers.
