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A leftover of the living being may be called excrement; a leftover of a dead animal, soap. The beetle is attracted by the smell of the feces, feeds from it by carving a sphere out of it and then carries this ball. Moreover, it lays its eggs inside. Tesouro Besouro proves an experience where the absence of the putridity makes a beetle model its sphere from scented soap.
Three spheres are made of highly scented soap with a dead beetle in the center.