These cute monkey clones might be the key to better human medicine

To see Zhong Zhong and Hua Hua crawl over a giant Hello Kitty stuffed animal and fall over each other, you’d think they were just normal macaques — and indeed, what’s special about them isn’t immediately visible. They’re clones created in China using the same technique that over 20 years ago gave the world Dolly, the first mammal cloned from an adult sheep. Their existence proves that animals as complex as monkeys can be cloned, too.
The two macaques were born less