Chinese Scientists Add Human Brain Genes Into Monkeys

Scientists in China have created a new kind of monkey using human brain genes in an attempt to understand how human brains develop. According to a study published Beijing's National Science Review journal last month, researchers took human copies of the MCPH1 gene and introduced it into monkey embryos by means of a virus that carried the gene. The gene is believed to play an important role in our brain development.

Vox reports that of the 11 transgenic rhesus macaque monkeys they generated, six died. The five who survived were found to perform better on short-term memory tasks involving colours and blocks. Their brains also developed over a longer period of time, much like human babies. None of the monkeys developed larger brains.