A new viral optical illusion has divided the internet once against. For this simple yet reflective challenge, you need to see the image above - which reports completely different colours – for some it ...

Is the colour you see the same as what I see? It’s a question that has puzzled both philosophers and neuroscientists for decades, but has proved notoriously difficult to answer. Now, a study that ...

From the cigar nestled in the brickwork to 'The Dress', many optical illusions have baffled viewers over the years. But the ...

People who speak a language that has multiple words for different shades of colour perceive the shades more quickly. Bees have a phenomenal ability to perceive different shades of colour, and their ...