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.
Upslope advance of forest fires
Mohammad Reza Alizadeh, John T. Abatzoglou, and Mojtaba Sadegh report that forest fires have been advancing upslope across the western United States in recent decades.
How bats know the speed of sound
Eran Amichai investigates how bats know the speed of sound.
Animal behavior and ecosystem effects
Mike Gil discusses how changes in animal behavior can affect ecosystems.
Patient–physician racial concordance
Brad Greenwood explains how patient–physician racial concordance decreases Black infant mortality.
How HIV infects human cells
Vinay Pathak describes when and where HIV sheds its capsid coating while infecting human cells.
Jeannie Lee describes the discovery of self-cleaving ribozymes.
These are really short, single-subject podcasts about 5-15 minutes long usually. They're always interesting.