Animals come in all sorts of colors, and while the animal kingdom has most of the rainbow’s colors at its disposal, there are a few exceptions. Some animals, for example, may appear blue at first ...

Peacocks, panther chameleons, scarlet macaws, clown fish, toucans, blue-ringed octopuses, and so many more: The animal kingdom has countless denizens with extraordinarily colorful beauty. But in many ...

Blue blood may look alien, but it’s one of evolution’s most elegant solutions to life in extreme environments. Here’s how ...

In nature, the ability to change color can be key to survival. Vision is a very important sense in much of the animal kingdom, and many animals have come up with unique ways to use this sense to ...

Between the sky and sea, nature appears to favor blue, as do we humans. Yet the color is rare in nature—especially not in “a blue-violet hue resembling the color of electrical sparks,” which is how a ...

Colors in nature can be produced by both pigments that absorb some light and microscopic structures that change the wavelength of light. Juraj Polak / Getty Images To the untrained eye, most fossils ...