Japanese boy finds butterflies retain memories across metamorphosis, pass them to offspring

Ten-year-old Jo Nagai from Japan hand-raised swallowtail butterflies and made a remarkable scientific discovery. He found that the insects were able to remember him even after undergoing complete metamorphosis from caterpillar to butterfly. His experiments demonstrated that sensory memories survived the radical physical transformation the creatures go through. Strikingly, the learned behaviors Nagai trained into the butterflies were also passed down to their offspring and grandchildren. The findings were presented at an international scientific congress, drawing significant surprise from the research community.