Nature often displays its beauty in the form of colours, and birds are one of the most colourful examples of this. Some ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Many types of birds ...

While birds often have vibrant plumage, the dazzling diversity in the colour of their eyes might be just as important for their survival and reproductive success, according to a review of hundreds of ...

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, research has ...