We all have a strong survival instinct, one that kicks in the moment that we sense danger. For some of us, our 'fight or ...

Optical illusions are older than you think. The first optical illusions date back to 20,000 BC and took the form of cave sculptings. Nowadays they are found all over the place – on screens, in books ...

An optical illusion is a visual phenomenon where the brain perceives an image differently from how it physically exists. These illusions occur due to the way our eyes and brain process light, colour, ...