An optical illusion is a fascinating visual trick that deceives the brain into seeing something different from reality. These illusions occur when the information our eyes send to the brain is ...

Optical illusions are created by modifying images in such a way that they trick our visual system into believing what it is seeing is real. These illusions have been around for centuries and are also ...

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 ...