A visual illusion, or optical illusion, is a type of puzzle which make tricks the eye, and it occurs when our brain's interpretation of a visual stimulus differs from the objective reality. These ...

The study of visual illusions in animals provides a compelling window into both the evolutionary continuity and diversity of perceptual processes. Research indicates that many species, from domestic ...

If you have spent hours staring at your walls or lying on your back to trace familiar patterns in the night sky, this challenge is perfect for you. At first, the image might seem just another ...