It's time now for our science news roundup from Short Wave, NPR's science podcast. And I'm joined now by Emily Kwong and Berly McCoy from the show. Hi to both of you. BERLY MCCOY, BYLINE: Hi, Juana.

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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