The Aeternus Aenigma, a “hypnotic spectrum” puzzle ... experimenting with a cube made of magenta, cyan and yellow acrylic colours. Lorenzo Gonzalez and Gabi Saper of CMY Cubes.

A Belgo-Dutch startup is developing an alternative to color filters that would let sensors capture all the light shone on ...

Cats can see color—but not the same way humans do. Here’s the truth about how feline vision works and how it differs from ours. As much as we like to impose human personalities on our pets ...

Different stool colors can mean different things, mostly depending on what you’ve eaten. You’d probably notice if your poop is a different hue than normal. But what does it mean if it’s green?

Learn more. Everyone has a different “normal” when it comes to urine color, but it should fall on the yellow spectrum. The amount of water you drink affects whether the color is a pale yellow ...