This episode explores the fascinating cross-continental collaboration between an entomologist, Martha Weiss, and a young Japanese boy, Joe Nagai, both passionate about insect memory. Against the backdrop of Weiss's groundbreaking research on moth memory persistence through metamorphosis, a letter from Joe, a second-grader, ignited an unexpected correspondence. More significantly, Joe, inspired by Weiss's work, replicated her experiment on butterflies, achieving similar results and even questioning her methodology. For instance, Joe used a muscle therapy device instead of electric shocks, demonstrating a unique approach to his research. The narrative then shifts to the family's trip to Japan to meet Joe, revealing a vibrant culture of insect enthusiasm and highlighting Joe's presentation at a major entomology conference. Ultimately, the episode reveals not only the scientific findings but also the human connection and shared passion that drove this unique collaboration, underscoring the importance of interspecies empathy in scientific inquiry.