Some birds are feathered tufts of color so resplendent that they stand out brilliantly from their surroundings. "You have to ask why birds would do this," says Joe Corbo, a biologist at Washington ...
Parrots are unique among birds in how they produce the pigmentation that makes their vibrant feathering. It turns out a single enzyme calibrates... How parrot plumage gets its dazzling reds and ...
“You have to ask why birds would do this,” says Joe Corbo, a biologist at Washington University in St. Louis. “And one of the leading hypotheses is that the male has elaborate ornaments or colors that ...
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