Butterflies may remember humans, Japanese student’s discovery suggests

A ten-year-old boy named Jo Nagai hand-raised swallowtail butterflies in Japan. He discovered these insects could remember him after metamorphosis and training. Nagai’s experiment showed sense memories survived the caterpillar’s complete body transformation. His trained butterflies passed this learned avoidance to their offspring and grandchildren. This groundbreaking research presented at an international congress shocked the scientific community.