As has been found in some bird and primate species, human eye and visual system sizes vary with the levels ... suggesting that the changes in ocular size exactly compensate for the lower light levels ...

When evolution skeptics want to attack Darwin's theory, they often point to the human eye. How could something so complex, they argue, have developed through random mutations and natural selection ...

Five people have seen a color never before perceived by the human eye a bluish-green one called “olo” that is beyond the ...