Is there anything special about human beings? A long list of characteristics—some obvious, some surprising—sets humans apart from other creatures. (Who knew that having a chin was so unusual?) Resources & links related to this episode: Get in touch: podcast@gretchenrubin.com Visit Gretchen's website to learn more about Gretchen's best-selling books, products from The Happiness Project Collection, and the Happier app. Find the transcript for this episode on the episode details page in the Apple Podcasts app. See omnystudio.com/listener for privacy information.