FILE -- In this Friday, March 2, 2018 photo Keeper Zachariah Mutai attends to Fatu, one of only two female northern white rhinos left in the world, in the pen where she is kept for observation, at the ...
BERLIN (AP) — Scientists say they're several steps closer to perfecting a method that could prevent the extinction of northern white rhinos, of which only two animals are known still to be alive.
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