Monkeys get full color vision

Monkeys get full color vision

Males with red-green colorblindness can distinguish the hues after gene therapy, study suggests

By Tina Hesman Saey, 14:18 PM September 16, 2009

Two male squirrel monkeys now see the world in a whole new way — in full color.

Female squirrel monkeys can see in color, but male squirrel monkeys are normally red-green colorblind because they lack pigments in the retina that detect those wavelengths of light. Now, researchers have performed gene therapy that allowed two male squirrel monkeys named Sam and Dalton to produce proteins that detect red light. As soon as the red-light-harvesting protein was made in the monkeys’ eyes, the anima...

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