Tag Archives: songbirds

Visual and acoustic signals evolve independently in a large, phenotypically diverse radiation of songbirds.

After Big Bang

A study of one of the world’s largest and most colorful bird families has dispelled a long-held notion, first proposed by Charles Darwin, that animals are limited in their options to evolve showiness. “Animals have limited resources, and they have to spend those in order to develop showy plumage or precision singing that help them attract mates and defend territories,” said the paper’s lead author. “So it seems to make sense that you can’t have both. But our study took a more detailed look and suggests that actually, some species can.”

Tanagers are among the most spectacularly colorful birds in the world. Credit: Image courtesy of Cornell University Tanagers are among the most spectacularly colorful birds in the world.
Credit: Image courtesy of Cornell University

The natural world is full of showstoppers — birds with brilliant colors, exaggerated crests and tails, intricate dance routines, or virtuosic singing. But it’s long been thought that these abilities are the result of trade-offs. For a species to excel in one…

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