The intricate plumage of male birds of paradise has become increasingly elaborate throughout their evolution due to females mating preferentially with males that display the most impressive feathers. This is an example of _____ selection.

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Sexual selection refers to the process by which females choose mates based on certain traits. In this example, the females are choosing males with more impressive feathers, which has driven the evolution of increasingly elaborate plumage in males over time.

The Intricate Plumage of Male Birds of Paradise Has Become