Planet of the Apes: scientists used gene-editing techniques to make monkeys MUCH smarter

For the first time, scientists have used gene-editing techniques to make monkey brains more humanlike.

The monkeys, rhesus macaques, got smarter — they had superior memories to unaltered monkeys, according to recently-published research that’s kicked off a fiery debate among ethicists about how far scientists should be able to take genetic experimentation.

The team of Chinese scientists edited the human version of a gene called MCPH1 into the macaques. The new gene made the monkeys’ brains develop along a more human-like timeline. The gene-hacked monkeys had better reaction times and enhanced short-term memories compared to their unaltered peers, according to China Daily.

“The use of transgenic monkeys to study human genes linked to brain evolution is a very risky road to take,” University of Colorado geneticist James Sikela told the MIT Technology Review. “It is a classic slippery slope issue and one that we can expect to recur as this type of research is pursued.”