Family Photo: Snuppy stands next to the male Afghan hound (left) from which he was cloned. Snuppy's surrogate mother was a yellow Labrador (seen in enlarged photo).

Snuppy, the first cloned dog, appears with the three-year old male Afghan hound whose cells were used to clone him. South Korea's pioneering stem cell scientist has cloned a dog, smashing another biological barrier and reigni ting a fierce ethical debate - while producing a perky, lovable puppy. The researchers, led by Hwang Woo-suk, insist they cloned an Afghan hound, a resplendent supermodel in a world of mutts, only to help investigate human disease, including the possibility of cloning stem cells for treatment purposes. But others immediately renewed calls for a global ban on human reproductive cloning before the technology moves any farther.

"Successful cloning of an increasing number of species confirms the general impression that it would be possible to clone any mammalian species, including humans," said Ian Wilmut, a reproductive biologist at the University of Edinburgh who produced the first cloned mammal, Dolly ...