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This week in science: Swearing, bird bills and the pandemic, and whale breath samples

By Emily Kwong,

Berly McCoy

Published December 25, 2025 at 5:09 PM EST

Emily Kwong and Berly McCoy of NPR's Short Wave talk about why swearing might improve physical performance, how birds' bills changed during the pandemic and why scientists are sampling whale breath.

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All Things Considered US / World

Emily Kwong

Emily Kwong (she/her) is the reporter for NPR's daily science podcast, Short Wave. The podcast explores new discoveries, everyday mysteries and the science behind the headlines — all in about 10 minutes, Monday through Friday.

See stories by Emily Kwong

Berly McCoy

Kimberly (Berly) McCoy (she/her) is an assistant producer for NPR's science podcast, Short Wave. The podcast tells stories about science and scientists, in all the forms they take.