Andrew Lewin discusses the recent discovery of photographs capturing humpback whales engaging in copulation. The episode features Stephanie Stack from the Pacific Whale Foundation to delve into the surprising details of this behavior. Discover the untold story behind humpback whale reproduction and learn how this new insight can help in ocean conservation efforts. Connect with Stephanie: Instagram: https://www.instagram.com/stephaniehstack/ TikTok: https://www.tiktok.com/@whalescientist The groundbreaking discovery of two male humpback whales engaging in copulation challenges previous assumptions about humpback whale behavior and raises new questions for researchers. Captured by professional photographers Lyle and Brandy, this observation sheds light on the complexity of humpback whale social interactions. The encounter, which occurred in Hawaii, revealed unexpected behavior that had not been previously documented in humpback whales. Traditionally, humpback whales were believed to be solitary animals, with the exception of the bond between a mother and calf in the first year of life. However, this observation of two male humpback whales engaging in copulation suggests a more intricate social dynamic among these marine mammals. The discovery challenges the preconceived notion of humpback whale behavior and opens up new avenues for research into their social interactions. The photographers' familiarity with humpback whales and their ability to capture identification photos of the whales played a crucial role in this discovery. By providing detailed images of the whales, researchers were able to track and identify the individuals involved in the copulation event. This data, combined with the knowledge of the whales' history and previous sightings, allowed researchers to interpret the interaction and gain valuable insights into humpback whale behavior. The observation also raises questions about the nature of competitive groups among male humpback whales on breeding grounds. Previous interpretations of these groups as males competing for access to females may need to be reevaluated in light of this new discovery. The possibility of male-male sexual behavior as a form of bonding or socializing adds a layer of complexity to our understanding of humpback whale interactions. Overall, the discovery of two male humpback whales engaging in copulation highlights the importance of continued research and observation of marine mammals. It underscores the need to challenge existing assumptions and explore the full range of behaviors exhibited by these fascinating creatures. This event serves as a reminder of the complexity and diversity of marine life and the ongoing quest to unravel the mysteries of the ocean. The episode emphasizes the vital role that citizen science and community scientists play in advancing our understanding of marine mammals, such as humpback whales. Stephanie Stack, a humpback whale researcher, highlights the significance of individuals like Lyle and Brandy, who were familiar with humpback whales and the identification techniques used in research. Knowledge and Expertise: Lyle and Brandy's experience in the tourism industry and photography of humpback whales provided them with a deep understanding of the animals. Their familiarity with the underside anatomy of humpback whales allowed them to accurately sex the whales and capture identification photos, essential for tracking individuals over time. Data Collection: The ability of citizen scientists to capture high-quality photographs of the whales in the act of copulation provided researchers with a rare and valuable dataset. These observations, combined with identification photos, contribute to long-term catalogs used to track trends and changes in humpback whale populations. Advancing Research: Working with community scientists who are on the water and able to capture unique encounters like the one involving two male humpback whales mating enhances the knowledge