The new study showed that the frequency of people with dark skin was still high in parts of Europe until the Copper Age (also ...

In humans, phenotypically, eye color falls into one of these basic categories -brown, blue or green. Brown eyes are ... emotions and neurotic behaviour than light-eyed people.

Green light is in the middle. Our eyes only detect three colours: red, green and blue. By combining these we can perceive many different colours Our eyes only detect three colours: red ...

What does a flower look like to a hummingbird? New research says it’s probably nothing like what humans perceive because ...