PNAS Science Sessions

Cecilia Machado and Douglas Almond discuss the impact of a first child on the career trajectory of mothers.

Laela Sayigh asks whether dolphins use "motherese" when communicating with their calves.

Pascal Polonik and Kate Ricke explain why reducing greenhouse gas emissions does not always improve environmental equity.

Ian Phillips, Rui Zhe Goh, and Chaz Firestone use auditory illusions to explore how people perceive silence.

Cameron Hecht discusses an intervention targeting high school teachers to improve student retention and diversity in STEM fields.

Vanessa Duthé explains how dehorning affects the behavior of black rhinoceroses.

Eric Martínez explains why legal documents are written in hard-to-read language.

Researchers explore trends in the gender gap among internationally mobile scholars.

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

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