An all-new viral optical illusion on Reddit has left hundreds of people scratching their heads. At first glance, you will see a scene from a forest where there are simple piles of wood stacked neatly.

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 ...

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

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

A new Reddit optical illusion has left people scratching their heads. Can you find the real black cat amid the Halloween ...

Test your sharp observation skills with a fun optical illusion challenge! Spot the correctly oriented '95' among dozens of inverted ones in just 9 seconds. This puzzle tests your brain's ability to ...

This mind-bending illusion tests your perception of depth and dominance. Whether you see the man in red or grey on top ...

Duping a guppy is easier than duping a ring dove — at least when it comes to a classic optical illusion.