The metamorphosis of the Megatherium: Examples of Goethe's heterodox palaeontology

In this paper I present the well-known German literary giant Johann Wolfgang von Goethe (1749–1832) as a heterodox thinker in palaeontology. In Britain, Goethe is best known as a poet, playwright and man of letters, despite producing substantial and detailed scientific studies to which he occasionally attached highly controversial interpretations. In his scientific studies and perhaps especially in palaeontology, Goethe was at times orthodox and at other times highly heterodox. His fundamental project was to comprehend the unifying principle within all nature and in that respect he was one of the early, great holistic thinkers. Goethe proposed a theory of a dynamic unifying ‘type’ for both plants and animals, working together with an inherent creative drive, which he believed was present in all nature. Here I show how he used this model to interpret the morphologies of extinct Plio-Pleistocene mammals such as the aurochs and giant sloth, and also demonstrate how Goethe's dynamic thinking led to some tentative pre-Darwinian transformationist (‘evolutionary’) propositions.