And there are other possibilities, like "naturalist," but that also has problems of confusion, because Darwin would have thought naturalist — "Naturalist" means, of course, as opposed to "supernaturalist" — and it is used sometimes — Darwin would have been confused by the other sense of "naturalist," which he was, of course, and I suppose there might be others who would confuse it with "nudism".
Y existen otras posibilidades, como ¨ naturista ¨, pero también tiene problemas de confusión porque Darwin habría pensado ¨ naturalista ¨ - ” naturalista ” significa, por supuesto, lo opuesto a sobrenatural- y así se usa algunas veces.