Later in the 18th century, the French philosopher Georges-Louis Leclerc, Comte de Buffon, one of the leading naturalists of the time, suggested that what most people referred to as species were really just well-marked varieties, modified from an original form by environmental factors.
Posteriormente no século XVIII, o filósofo francés Georges-Louis Leclerc, conde de Buffon, un dos naturalistas líderes do seu tempo, suxeriu que o que a maioría da xente chamaba especies eran realmente só variedades ben marcadas, modificadas a partir dunha forma natural por factores ambientais.