Biology
Sexual Selection and the Evolution of Elaborate Plumage in Birds of Paradise
Quick fact
Male birds of paradise have evolved some of the most extreme ornamental traits in the animal kingdom—such as elongated tail feathers and vivid colors—because females consistently choose mates with the most elaborate displays, driving a runaway evolutionary process that favors ever more striking plumage.
Why this is interesting
In the rainforests of New Guinea, male birds of paradise perform dazzling dances while sporting iridescent feathers and long, flowing plumes. But why would evolution produce such extravagant ornaments that seem to hinder survival?