“There seems to be an end to animal cloning in sight. Only monkeys are left to go.”
A team led by Professor Hwang Woo-suk succeeded in cloning dogs for the first time in the world. Other than humans, monkeys have become the only animal left to be cloned.
Since the birth of the cloned sheep Dolly in 1996, scientists around the world have competed in cloning livestock useful to humans, pets, and laboratory animals. Until now, a total of 12 kinds of species including 11 kinds of mammals, and one kind of fish have been cloned.
Professor Lee Byeong-cheon of the team that experimented to clone dogs said, “The cloned animals in the early stages of cloning include animals whose basic information such as mating season and ovulation period are acquired in abundance by people. Among the animals that are worth cloning but have yet to be cloned are dogs and monkeys that are useful as human disease models.”
Professor Gerald Schatten at the University of Pittsburgh School of Medicine announced in October last year that he successfully planted 135 cloned embryos in the wombs of 25 female monkeys with the help of Professor Hwang, but failed to impregnate them.
Before the success of Professor Hwang, it was considered impossible to clone dogs as well as monkeys.