cloning
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Chimeric Human-Monkey Embryos Kept Alive for a Record 19 Days
A chimeric human-monkey blastocyst. Building on previous experiments, an international team of scientists has created chimeric human-monkey embryos, which were…
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Meet the First Endangered Animal to Be Cloned in North America
Elizabeth Ann at 50 days old. Image: U.S. Fish & Wildlife Service Elizabeth Ann is the first clone of a…
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