Meet Jo Nagai: 10-year-old Japanese student who discovered butterflies can remember their time as caterpillars after he noticed that the caterpillars he had raised to recognise him after turning into butterflies

A 10-year-old student from Japan has captured worldwide attention after his fascination with butterflies led to a remarkable scientific study that is challenging long-held assumptions about insect memory. Jo Nagai, an elementary school student from Kobe, spent years carefully observing the Asian swallowtail butterflies he raised at home.

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