The optical illusion inside butterfly wings is similar to the barber-pole illusion. When looking at the red-and-white striped ...

Optical illusion personality tests are interesting brain teasers that trick the brain and eyes into believing what a person ...

A butterfly’s bold stripes, bands and spots on their wings can help them evade predators. Sure, camouflage is one route, but ...

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.

Researchers shot butterflies taking off in super slo-mo and found the patterned wings may actually be an optical illusion to make predators miss ...

A bird attacking a butterfly will often find its beak snapping at thin air. According to new research, that split-second miss ...

Optical illusion personality tests trick our eyes and brain into believing what a person sees first based on their thoughts, ...

The Illusion Divide: When exposed to a motion aftereffect, human observers perceive a stationary object as shifted in the opposite direction. Primate inferior temporal (IT) cortex neurons mirrored ...

Can you spot the well-known face in this black-and-white grid? It’s difficult to see, but a celeb’s portrait is hidden among the dots that make up the brain-frazzling optical illusion. There are a few ...

Can you rat out his hiding spot? If you can spot the mouse in this optical illusion in less than a minute, you may be a record holder. Created by Hungarian author-artist Gergely Dudás, the ...