This podcast episode, titled "History's Greatest Monkeys," features two hosts discussing the historical interactions between humans and primates. The episode begins with a discussion of the classification of primates (monkeys vs. apes), then explores historical examples, including a macaque buried with Roman military equipment, a monkey fighting dogs in 1820s London, and chimpanzees in Hollywood. The hosts also delve into the story of a baboon signalman in South Africa and a monkey's role in a British mayoral election. The episode concludes by highlighting the blurring of lines between human and primate behavior and intelligence, referencing Charles Darwin's observations of an orangutan.