The journey towards a colorful world began with the evolution of vision, which initially developed to distinguish light from dark over 600 million years ago.

Clownfish lure other fish to anemone with their bright colours. Jonathan Goldenberg, CC BY-NC-ND. Unlike many mammals, which have dichromatic vision and see fewer colours, most primates including ...

Sensory features on the armored exoskeletons of ancient fish may be the reason why humans have teeth that are sensitive to cold and other extremes. CNN values your feedback 1.