PNAS Science Sessions
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.
Latest episodes
Jun 11, 2019 • 6min
Ancient Maya salt industry
Heather McKillop explores the Maya salt industry.
Jun 11, 2019 • 6min
Social mobility across generations
Mike Hout explores the persistence of occupational and socioeconomic standing from parent to child in America.
Jun 11, 2019 • 8min
Paintbrush for butterfly wings
Robert Reed explains genetic controls on butterfly wing colors.
Jun 11, 2019 • 6min
Nondestructive sampling of cell contents
Nick Melosh describes a method for sampling RNA and proteins from cells using nanostraws.
Jun 11, 2019 • 7min
Deep subseafloor microbial life
Victoria Orphan and Elizabeth Trembath-Reichert discuss microbial life in the deep subseafloor.
Jun 11, 2019 • 5min
Origins of bread
Amaia Arranz-Otaegui describes the discovery of bread that far pre-dates agriculture.
Jun 11, 2019 • 6min
Natural selection in sea stars
Lauren Schiebelhut describes natural selection following sea star wasting disease.
Jun 11, 2019 • 7min
Respectfulness in police-community relations
Rob Voigt and Nicholas Camp examine respectfulness in police officers' interactions with community members.
Jun 11, 2019 • 8min
Biodiversity hypothesis
Jenni Lehtimäki and Stefan Reber explore links between animal exposure in upbringing and immune system function.
Jun 11, 2019 • 6min
RNA origin in warm little ponds
Ralph Pudritz and Ben Pearce describe a model of how RNA-based life could have originated on the early Earth.
