Flamingo's vibrant pink and red plumage is a direct result of their diet, rich in carotenoids from algae and crustaceans. This coloration is further enhanced by cosmetic secretions during preening, ...

There's a reason why flamingos are so pretty in pink: The birds apply "makeup" to impress mates, a new study says. Scientists had long assumed that flamingo feathers change color only when the plumage ...