This week in science: Fly migration, a surprise in the Amazon and fish noises

By Berly McCoy,

Regina G. Barber

Published October 3, 2025 at 4:52 PM EDT

Hosts of NPR's science podcast discuss new findings about long-distance fly migration, an unexpected impact of emissions in the Amazon, and fish noises.

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.

Regina G. Barber

Regina G. Barber is Short Wave's Scientist in Residence. She contributes original reporting on STEM and guest hosts the show.

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