source :http://news.bbc.co.uk/2/hi/asia-pacific/8158097.stm
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The Labrador retrievers are genetically identical
Cloned sniffer dogs at Seoul's Incheon International Airport on July 17
The Labrador retrievers are genetically identical
Six puppies cloned from a Canadian-born sniffer dog in late 2007 have reported for duty after completing a 16-month training programme.
The clones are all called Toppy, a combination of "tomorrow" and "puppy".
The customs agency says clones help to lower crime-fighting costs as it is difficult to find good sniffer dogs.
Only about 30% of naturally-born sniffer dogs make the grade, but South Korean scientists say that could rise to 90% using the cloning method.