A Short History Of Humans And Germs Xaver Xylophon for NPR hide caption
Best of NPR Animations
Why did it literally take centuries for scientists to identify locusts and grasshoppers as the same creatures? Maybe it has something to do with our own sense of self. NPR hide caption
Walter Mischel, a psychologist who devised the marshmallow test, explained what it really means. Marcie LaCerte/NPR hide caption
Unlike humans, chimpanzees don't readily share food, even with their own children. Reece Wykes for NPR hide caption