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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.

Jun 19, 2023

Mattia Tagliavento talks about the evolutionary transition from dinosaurs to birds using isotopes in Troodon eggshells.

Jun 5, 2023

Pengfei Liu shares findings on racial disparities in exposure to the air pollutant nitrogen dioxide.