Once inside the monkeys’ bodies, the sulfur mixes with the melanin structures in their hair and changes its composition, creating a different color. It’s a problem because a lighter coat makes ...

They're so well organized that a change of as little as a millionth of an inch in size of or distances between would produce a different color. Speaking of, the monkeys can take on different hues.

Blue-hued monkeys have unusually neat and organized collagen fibers and even a slight change in those fibers, of size or distance, could produce a different hue or color. A 1976 research paper ...

For example, the monkeys may now perceive red and green as different shades of yellow and blue, colors the animals already knew. “If it doesn’t involve experiencing new sensations of color ...

Monkeys once color-blind can now see the world in full ... Like humans, monkeys' eyes contain cone and rod cells. Each cone contains different photopigments that can detect specific wavelengths ...

Neitz's team injected their monkeys' eyes with viruses carrying a gene that makes L-opsin, one of three proteins released when color-detecting cone cells are hit by different wavelengths of light.

Once inside the monkeys’ bodies, the sulfur mixes with the melanin structures in their hair and changes its composition, creating a different color. It’s a problem because a lighter coat makes ...

Colored shapes were embedded in a background of a different color, and the monkeys touched the screen where they saw the shape. The researchers found that the animals’ color vision changed ...