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This is an archive article published on July 2, 2007

Cloning Glory

Reproductive cloning creates animals that are genetically identical to an existing one. Since 1997, scientists have cloned 17 species:

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8226; Sheep, 1997: Dolly makes headlines as the first clone of an adult mammal

8226; Mouse, 1998: Researchers in Hawaii create 50 clones of a single mouse

8226; Bull, 1999: Cloning a bull leads to a debate about the safety of milk and meat from clones

8226; Pig, 2000: Five cloned piglets open the way to cloning animals to grow organs

8226; Goat, 2000: The first goat clone dies from abnormal lung development

8226; Gaur, 2001: A wild ox becomes the first clone of an endangered species

8226; Mouflon, 2001: A sheep becomes the first endangered-species clone to survive infancy

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8226; Rabbit, 2002: Researchers clone a rabbit that may model human diseases

8226; Cat, 2002: A company formed to reproduce cherished pets clones the first cat

8226; Mule, 2003: Offspring of a horse and a donkey yield the first hybrid clone

8226; Rat, 2003: A challenge to researchers, its eggs begin dividing almost instantly

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8226; African wildcat, 2004: Researchers use a domestic cat as its own surrogate mother

8226; Dog, 2005: Researchers in South Korea clone an Afghan puppy they name Snuppy

8226; Water Buffalo, 2005: Cloned in China, it opens interest in improving the animal and its milk

8226; Horse, 2005: It8217;s the first clone whose surrogate mother is also a genetic donor

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8226; Ferret, 2006: Researchers in Iowa hope to use it to study human respiratory diseases

8226; Wolf, 2007: South Korean scientists clone two gray wolves, an endangered species

 

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