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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.

Aug 31, 2020

Clark Larsen describes the costs of urban life a Neolithic city.

Aug 17, 2020

Mette Svenning and Alexander Tveit describe a bacterium that can live on gases in the air.

Aug 3, 2020

Derek Moulton explains the mathematics behind bivalve shell design.