An optical illusion is a visual phenomenon where our perception of thinking about an image differs from objective reality. These optical illusions occur due to the brain's attempt to interpret complex ...

Our eyes can be surprisingly unreliable when it comes to the world of optical illusions. These clever puzzles are designed to confuse the brain as they manipulate how we process visual information.

Several years ago, on a casual clear-my-head walk around my neighborhood, I noticed a crow watching me. I paused. I looked more closely. Something in her shiny black eye revealed an intelligence I had ...