But She's So Young

As the genetic carbon copy of another creature, Dolly the sheep — the world's first cloned mammal — doesn't really have parents in the normal sense. But Ian Wilmut, 57, the embryologist who led the experimental team that produced her in 1997, could be considered something of a father figure to the famous ewe. And since one ambition of Wilmut and his colleagues at the University of Edinburgh's Roslin Institute has been to strengthen the bond between humans and animals, his disclosure last week that Dolly is afflicted with premature arthritis was more than just the dry clinical announcement of a...

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