NPR News: Dolly The Sheep, World's First Cloned Mammal, Turns 20

Dolly The Sheep, World's First Cloned Mammal, Turns 20
Twenty years ago today, the world's first cloned mammal was born — a sheep named Dolly.

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Làm đẹp Blog 247 July 6, 2016 at 03:29AM
Category Health & Science