While new optical illusions go viral all the time, here are some of the most famous illusions that have kept us scratching our heads for years.

Scientists investigating European butterflies' ability to evade predators found they employ an optical illusion similar to a ...

Scientists say buterfles' flapping patterned wings create motion illusion effects that "scramble" predators' aim. The post ...

Israeli artist Dudi Ben Simon masterfully transforms the ordinary into the extraordinary, turning the world into his creative playground. With a keen eye for illusion, he blends everyday objects and ...

Optical illusions are older than you think. The first optical illusions date back to 20,000 BC and were seen in caves. Nowadays they are found all over the place – on screens, in books and even in ...

A head-scratching optical illusion challenges the perception of color and how the brain plays tricks on us. In an image created by the UK contact lens vendor Lenstore, a series of lilac letters ...

The argument can be traced back to the Roman author Vitruvius, who talked about Greek architecture several centuries after the Parthenon was finished. Vitruvius said that if the platform was ...

For the first time, research shows that a certain kind of visual illusion, neon color spreading, works on mice. The study is also the first to combine the use of two investigative techniques called ...