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Why do songbirds spend so much time and energy singing?

A new study shows male zebra finches must sing every day to keep their vocal muscles in shape. Females hear if a male has skipped his regimen for only a few days, and they prefer the song of males who did their daily vocal workout.

NPR’s Ari Daniel reports.

This article was originally published on WBUR.org.

Copyright 2023 NPR. To see more, visit https://www.npr.org.

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