Fertility Cliff

This episode of Radiolab is the last of the year and features Molly and Latif reflecting on their favorite episodes and thanking listeners for their support, especially highlighting the importance of donations due to recent funding cuts. They promote year-end donations with incentives like a puzzle, t-shirt, and bumper sticker, and mention the option to join the Lab for perks like sponsor-free listening. The main segment revisits their most listened-to episode of the year about menopause, specifically focusing on the concept of the "fertility cliff." Molly presents findings from a live event in 2018, updating the data with epidemiologist Lauren Wise, and discusses differing fertility trends in Denmark versus North America, as well as touching on male fertility. The episode concludes with a final push for donations to support upcoming projects, including pieces on snail sex and brain balls.