Rearing experimental animals under special illumination, researchers have found new evidence that early visual experience is indispensable for the development of normal color perception. The ...

Animals are living color. Wasps buzz with painted warnings. Birds shimmer their iridescent desires. Fish hide from predators with body colors that dapple like light across a rippling pond. And all ...

This story is part of a series on the current progression in Regenerative Medicine. This piece is part of a series dedicated to the eye and improvements in restoring vision. In 1999, I defined ...

Colour constancy is the capacity of visual systems to keep colour perception constant despite changes in the illumination spectrum. Colour constancy has been tested extensively in humans and has also ...

A quiet walk in nature often hides surprises. Many animals see worlds unlike ours. Their colours appear muted or shifted differently. Their eyes favour survival over vivid tones. These creatures rely ...

The amount of information reaching our sensory organs every second would be overwhelming if it were not for our ability to categorize it. Colour perception is a good example of this phenomenon. When ...

The famous Ebbinghaus illusion, named for its discoverer, the German psychologist Hermann Ebbinghaus (1850–1909). Despite appearances, the two orange circles are the same size. Have you ever looked at ...

Snakes are intelligent and resourceful hunters as a whole. These reptiles, which amount to over 3,600 species, have adapted such impressive qualities to maintain life, one of which is their special ...

Some animals in nature can do something really amazing– they can change their colours. It’s not just to look pretty, but also about staying safe, catching food, or showing how they feel. This special ...