In order to see the red of a sunset or the green of spring leaves, developing human eyes need to get the right hormone at the right time. That's the finding of a team of scientists who studied how ...

Biologists grew human retina tissue from scratch to determine how cells that allow people to see in color are made. Biologists at Johns Hopkins University grew human retinas from scratch to determine ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. In the human eye, there are three types of cone cells that regulate color vision, sensing red, ...