distribution. He argued that the structure of an animal was very closely related to its physical surroundings.

Closely after Linnaeus, Georges-Louis Leclerc, Comte de Buffon observed shifts in climate and how species spread across the globe as a result. Buffon believed there was a single species creation event, and he was the first to theorize different groups of organisms coming from different regions of the world. Buffon saw similarities between some regions which led