After decades of exhaustive study, scientists have concluded that human tetrachromacy is real. Some people have a truly superhuman range of color vision. In fact, there are two distinct types of ...

The world is a colorful place, and scientists suspect that it's a lot more colorful for some people than for others. Preliminary research suggests that a small percentage of people can perceive about ...

This wave-pattern lake optical illusion is more than just art—it’s a brain teaser! Hidden within the ripples is a fish that only 1% of people with 143+ IQ and sharp Tetrachromacy vision can spot in ...