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SCI & TECH● LOW2h ago · Sep 26, 2026, 5:02 PM

He was 10 years old and trained caterpillars to avoid a smell: what happened when they turned into butterflies surprised scientists

Clarín · global

Jo Nagai conducted an experiment with swallowtail butterflies and observed that nearly 70% retained a learned aversion before metamorphosis. The phenomenon had already been scientifically documented in moths.

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