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Welcome to Science Sessions, the PNAS podcast program. Listen to brief conversations with cutting-edge researchers, Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in PNAS, plus a broad range of scientific news about discoveries that affect the world around us. Please scroll down for recent podcasts.

  1. All Episodes
  2. 2023

Math learning through videos

Mar 20, 2023

Stanislas Dehaene and Marie Amalric investigate whether short online videos are sufficient to teach mathematics concepts.

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Impressionism and air pollution

Mar 6, 2023

Anna Lea Albright and Peter Huybers describe how optical effects consistent with air pollution appear in the paintings of Claude Monet and J.M.W. Turner.

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How lizards adapt to urban living

Feb 14, 2023

Kristin Winchell explains the genetic basis of anole adaptation to urban environments.

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Revisiting the history of animal extinctions

Jan 30, 2023

Researchers document animal extinctions in the Ediacaran Period that may have preceded the earliest known mass extinction.

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The music of Mesozoic bush crickets

Jan 16, 2023

Bo Wang and Chunpeng Xu describe how fossilized katydids provide insight into the role of insect sounds in the Mesozoic.

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