Every old curator who'd been in that museum had seen this wonderful specimen, put their hand in the jar, pulled it out and thought, "Wow, look at that," plop, dropped it back in the jar, contaminating this specimen.
Cada viejo curador que había estado en ese museo había visto este maravilloso espécimen, colocó su mano en el frasco, lo sacó y pensó "vaya, miren eso", lo dejaba caer de vuelta al frasco, contaminando este espécimen.