Test-tube rhinos? Experiment aims to save a vanishing species
Scientists say they’ve used human test-tube baby techniques to try to save the nearly extinct northern white rhino. In an improbable experiment, they are trying to resurrect an entire subspecies using dead males, two infertile remaining females, and some closely related southern white rhinos. And they say they also plan to use stem-cell technology to try to create a population of pure northern white rhinos in the lab.