Add Yahoo as a preferred source to see more of our stories on Google. Some species of birds-of-paradise, which sport colorful, elaborate feathers, likely use biofluorescence to enhance visual cues ...

(CNN) — Many types of birds — such as hummingbirds, peacocks and parrots — are vividly colorful, but birds-of-paradise are especially flamboyant with hues of emerald, lemon, cobalt and ruby. Now, ...