An all-new viral optical illusion on Reddit has left hundreds of people scratching their heads. At first glance, you will see ...

Optical illusions can really confuse people's minds and this innocent-looking image is certainly no different. So can you see what's really going on with this picture?

Do animals see illusions like we do? A study tests guppies and doves to find out how different species process visual tricks.

The illusion makes clever use of colour theory, demonstrating how our brains perceive colours differently against certain ...

A new Halloween-themed optical illusion has gone viral on Reddit, forcing players to sharpen their observation skills.

Prior research has produced mixed results on the question of animals and their susceptibility to optical illusions, per the ...

In a new optical illusion, dots appear purple in central vision but blue in peripheral vision. Here's how it works.

Scientists tested two species against each other to see which was more likely to fall for an optical illusion.

An optical illusion has left people in stitches after they spotted a cheeky detail in a snap of a group of friends posing for ...

For most of us, these illusions are harmless. But my new research, published in Perception, suggests people with visual snow ...