This Radiolab episode explores the surprising nature of temperature. It was originally released in 2021 and features several stories about temperature's complexities. The episode begins with a look at how a snake species stays warm underwater. It then presents a story about a young man and his unexpected warming methods. Senior Correspondent Molly Webster challenges the established belief about a standard healthy body temperature. The episode was reported by Lulu Miller and Molly Webster. Becca Bressler, Lulu Miller, and Molly Webster produced the episode. Carin Leong provided additional assistance with production. Emily Krieger handled the fact-checking for the episode. Listeners are encouraged to sign up for the Radiolab newsletter. The show is supported by its listeners and other foundations.