Revealing the limitations of cloning, researchers who repeatedly cloned mice for two decades have discovered that such serial duplication triggers grave genetic mutations that accumulate ​over the ...

Scientists looking to bring the extinct woolly mammoth back to life have made adorable progress—using gene editing to create a "woolly mouse." The team at genetics and biotech firm Colossal ...

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Liane and William Russell examine a mouse in ORNL's Mouse House, where their genetics research led to the discovery of the ...