I n 1827, a London physician with an interest in caterpillar metamorphosis built small glass boxes to contain the cocoons and emerging butterflies. Peering into the “dirt” in one of the boxes one day, ...
In 1827, a London physician with an interest in caterpillar metamorphosis built small glass boxes to contain the cocoons and emerging butterflies. Peering into the "dirt" in one of the boxes one day, ...
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