According to their findings, the modified monkeys did better on a memory test involving colors and block pictures, and their brains also took longer to develop—as those of human children do.

Scientists were able to treat a "macular hole" in a monkey, helping to restore the animal's vision thanks to human stem cells. When you purchase through links on our site, we may earn an affiliate ...

Scientists have successfully used human stem cells to patch a hole ... the scientists had to remove the snow monkey's eye altogether. In doing so, though, the scientists did find that the retina ...