The Cherry, Bird, Cow marathon continues. It's March 30, 2021. Cherry, Bird, and Cow teach us about World Bipolar Day, a Dutch inventor who has created a place to scream in order to test for Covid-19, a South Carolina scientist who wants us to eat sea beans, the winners of the Guthman Musical Instrument Competition, the life and death of Lou Ottens, and a new map that aims to help us see a less distorted map of our world.