Slate Plus members get ad-free podcasts and bonus episodes of shows like Dear Prudence and Slow Burn. Sign up now to listen and support our work.How did the humble rubber duck become an icon of bath time? On this episode of Decoder Ring we talk to rubber duck experts, enthusiasts, and manufacturers to find out how the rubber duck evolved, why it's so appealing, and why there are thousands of them lost at sea.Learn more about your ad choices. Visit megaphone.fm/adchoices