SEOUL, South Korea --
South Korean scientists say they have cloned four beagles that glow red. MOST POPULAR: Video, stories and more
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They say the cloning techniques could help develop cures for human diseases in the future.
Researchers at Seoul National University said the dogs look like typical beagles during the day. But they glow red under ultraviolet light.
Scientists in the U.S., Japan and Europe have cloned fluorescent mice and pigs before, but this is the first time dogs with modified genes have been cloned successfully.
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