Male squirrel monkeys don’t see color well; they have a kind of red-green color blindness. Dalton's eyes really only see medium and short wavelengths of light—blues and greens, and their ...

Since human genes were used and the monkeys' eyes and brains are similar to ours, at least in terms of color vision, the researchers hope the same procedure could work in humans.

They have broad, dark-colored faces with wide, expressive eyes. They average between 13 and 14 pounds. Diet. Beyond leaves, red leaf monkeys also consume large amounts of seeds and flowers.

They got interested in the genetics of eye disease during their post-doctoral studies. In 1989, Jay Neitz's research at Santa Barbara confirmed that dogs are color-blind.

The melanin in Tissue B absorbs the red photon so it can’t leave the skin and reach your eye. In contrast, the blue photons take very short steps in between their scattering events, and they don ...

The monkey “chimera” with fluorescent eyes and fingertips, created by genetic researchers in China. Credit: Cell, Cao et al. The crab-eating macaque, a common study species, was born from an ...