Only two northern white rhinos remain, and they’re both female – here’s how we could make more
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Only two northern white rhinos remain, and they’re both female – here’s how we could make more
Ruth Appeltant, University of Oxford and Suzannah Williams, University of Oxford
There were fewer than 100 southern white rhinoceroses (Ceratotherium simum simum) a century ago. Today, there are over 20,000. Sadly, this success story only stretches as far as the southern subspecies of the white rhino. With the death of the last male in 2018, the northern white rhinoceros (Ceratotherium simum cottoni) has passed the point where it can be saved naturally. With only two females remaining, the subspecies is now classed as functionally extinct.
This is a poignant, but not entirely hopeless, situation. New techniques, such as in vitro fertil...
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