This is Jo Nagai: 10-year-old Japanese boy who discovered butterflies remember their memories as caterpillars

10-year-old Japanese boy Jo Nagai noticed that the swallowtail butterflies he raised from caterpillars kept flying back to him after release. That observation led to a home experiment, a collaboration with a Georgetown University entomologist, and a 33-page research report that demonstrated insect memory can survive metamorphosis and pass across generations.