Science Friday 2019-12-13 Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email Degrees of Change: Transportation. December 13, 2019, Part 1 Insulin Marketplace, Hair, Whale Size. December 13, 2019, Part 2 Hosted by Ira Flatow Produced by Science Friday and WNYC Studios
