Of all the vertebrates, a gecko has just become the first to ace behavioral tests for seeing color in very low illumination. People, for example, go color-blind in light equivalent to dim moonlight, ...

Melissa is a writer who focuses on home design, trends and projects. She covers content for a variety of sites to help readers navigate everything from finding the right interior color palette to ...

Colour discrimination is based on opponent photoreceptor interactions, and limited by receptor noise. In dim light, photon shot noise impairs colour vision, and in vertebrates, the absolute threshold ...