A new optical illusion asks participants to share whether they first see the head of a tiger or a hanging monkey in the image ...

Optical illusions have fascinated and perplexed us for centuries. These captivating images challenge our perception and ...

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Kevin Parry created a simple, yet maddening optical illusion: he made it look like ... that it required nothing more than an iPhone and a mirror. Story by Ian Phillips and editing by Carl Mueller ...

The brain cannot fathom how an optical illusion can manifest in real life ... round magically appear squarish when viewed in the mirror. “How can an object be both square and circular?” ...