Butterflies often appear so delicate and magical that it is hard to imagine them doing anything remotely ordinary, let alone something like going to the toilet. Yet one of the most common questions people have when observing these elegant creatures up close is surprisingly simple: Do butterflies pee? Because butterflies feed on nectar, water and sometimes rotting fruit, they take in far more liquid than most insects. That means their bodies must find a quick, efficient way to release excess fluid. Understanding how butterflies pee not only satisfies curiosity, it also helps explain how these insects stay light, energised and capable of long flights. A peer-reviewed study published in PLOS ONE examined puddling behaviour in Japanese Papilio butterflies and found that they actively excr

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