Have you ever felt that a person in a portrait is watching you, their eyes following you about a room? This optical illusion is known as the Mona Lisa effect, after Leonardo da Vinci’s famously ...

A new study by researchers from The University of Western Australia has used computer vision to reconstruct the false illusion of 3D shapes created by moth wing patterns. The research, published in ...

Q. I found this moth with a sword or cross on its wings on my porch. What is it? — Teresa, Marlboro A. It does resemble a crusader's cross or sword. It is a Clymene moth. It is out and about this time ...