Nature comes in a variety of striking colors, but all that beauty didn't evolve for our enjoyment. Conspicuous colors tend to be signals, often helping animals woo mates or warn predators. Yet the ...

Bold hues of red, orange, yellow, blue and purple help plants and animals communicate with their own species and others in their efforts to survive. Vivid orange dart frogs warn predators of their ...

Scientists reconstructed 500 million years of evolutionary history to reveal which came first: colorful signals or the color vision needed to see them. The natural world is awash with color, and many ...