Should we be worried about this monkey business?
Human clones could be next
Babies Zhong Zhong and Hua Hua are scientific marvels – they are the world’s first cloned monkeys.
Yet the adorable macaques, created by scientists in China, could be much more significant than that.
Many believe that they are a key stepping stone towards cloning human beings.
It is one of the biggest breakthroughs since Dolly the Sheep was cloned in Edinburgh Roslin Institute in 1997.
But could we clone humans in future and, if so, should we?
Here two experts discuss the issue.