In this episode of Stuff You Should Know, hosts Josh and Chuck explore peacocks, emphasizing that the term refers specifically to male birds. They discuss their distinctive features, including their impressive tail feathers that play a vital role in mating and territorial displays. The episode dives into mating rituals, communication methods between peacocks and peahens, and the fascinating concepts of sexual selection and iridescence in feathers. Additionally, it touches on the historical status of peacocks, their culinary significance, and conservation challenges faced by their species, particularly the endangered green peafowl.