This picture taken on June 29, 2016 shows cloned dogs in glass-fronted pens at a care room of the Sooam Biotech Research Foundation, a world leader in pet cloning, in Seoul. Sooam Biotech clones many animals, including cattle and pigs for medical research and breed preservation, but is best known for its commercial dog service. Since 2006, the facility has cloned nearly 800 dogs, commissioned by owners or state agencies seeking to replicate their best sniffer and rescue dogs. / AFP PHOTO / JUNG YEON-JE / TO GO WITH Science-genetics-cloning-pets-SKorea,FEATURE by Jung Ha-WonJUNG YEON-JE/AFP/Getty Images

This picture taken on June 29, 2016 shows South Korean scientist Hwang Woo-Suk after an embryo injection operation on a surrogate mother dog at the Sooam Biotech Research Foundation, a world leader in pet cloning, in Seoul. Sooam Biotech clones many animals, including cattle and pigs for medical research and breed preservation, but is best known for its commercial dog service. Since 2006, the facility has cloned nearly 800 dogs, commissioned by owners or state agencies seeking to replicate their best sniffer and rescue dogs. / AFP PHOTO / JUNG YEON-JE / TO GO WITH Science-genetics-cloning-pets-SKorea,FEATURE by Jung Ha-WonJUNG YEON-JE/AFP/Getty Images

This picture taken on June 29, 2016 shows a cloned dog in a glass-fronted pen at a care room of the Sooam Biotech Research Foundation, a world leader in pet cloning, in Seoul. Sooam Biotech clones many animals, including cattle and pigs for medical research and breed preservation, but is best known for its commercial dog service. Since 2006, the facility has cloned nearly 800 dogs, commissioned by owners or state agencies seeking to replicate their best sniffer and rescue dogs. / AFP PHOTO / JUNG YEON-JE / TO GO WITH Science-genetics-cloning-pets-SKorea,FEATURE by Jung Ha-WonJUNG YEON-JE/AFP/Getty Images

This picture taken on June 29, 2016 shows cloned dogs in glass-fronted pens at a care room of the Sooam Biotech Research Foundation, a world leader in pet cloning, in Seoul. Sooam Biotech clones many animals, including cattle and pigs for medical research and breed preservation, but is best known for its commercial dog service. Since 2006, the facility has cloned nearly 800 dogs, commissioned by owners or state agencies seeking to replicate their best sniffer and rescue dogs. / AFP PHOTO / JUNG YEON-JE / TO GO WITH Science-genetics-cloning-pets-SKorea,FEATURE by Jung Ha-WonJUNG YEON-JE/AFP/Getty Images

This picture taken on June 29, 2016 shows a cloned dog in a glass-fronted pen at a care room of the Sooam Biotech Research Foundation, a world leader in pet cloning, in Seoul. Sooam Biotech clones many animals, including cattle and pigs for medical research and breed preservation, but is best known for its commercial dog service. Since 2006, the facility has cloned nearly 800 dogs, commissioned by owners or state agencies seeking to replicate their best sniffer and rescue dogs. / AFP PHOTO / JUNG YEON-JE / TO GO WITH Science-genetics-cloning-pets-SKorea,FEATURE by Jung Ha-WonJUNG YEON-JE/AFP/Getty Images

TO GO WITH AFP STORY BY MARLOWE HOOD and PASCALE MOLLARD (FILES) This file photo taken on June 16, 2014 shows four white heifers, "genetic twin sisters" produced using cloning technology, from a very elite Shorthorn cow in the US, at the headquarter of Trans Ova Genetics in Sioux Center, Iowa. Two decades after Scotland's Dolly the sheep became the first cloned mammal, consumers may well wonder whether they are drinking milk or eating meat from cookie-cutter cows or their offspring. The fact is, there is no way to know for sure, say the experts, even in Europe, which has come closer to banning livestock cloning than anywhere else in the world. But there is one sector in which Dolly's legacy is alive and well: the duplication of prize breeding animals. / AFP PHOTO / Juliette MICHELJULIETTE MICHEL/AFP/Getty Images

Cuban Muslims use a computer at the Abdallah mosque during Ramadan in Havana, on July 1, 2016. The small Muslim community of Cuba celebrates discreetly the end of its Ramadan. / AFP PHOTO / ADALBERTO ROQUE / TO GO WITH AFP STORY BY ROMANE FRACHONADALBERTO ROQUE/AFP/Getty Images

A Muslim Cuban man uses a computer at the Abdallah mosque during Ramadan in Havana, on July 1, 2016. The small Muslim community of Cuba celebrates discreetly the end of its Ramadan. / AFP PHOTO / ADALBERTO ROQUE / TO GO WITH AFP STORY BY ROMANE FRACHONADALBERTO ROQUE/AFP/Getty Images