Henry of Hesse the Elder … poses a ludicrously bizarre yet metaphysically troubling question regarding the possibility of the generation of one species from the putrefying corpse of another species: that whether a fox can spontaneously be generated from a dog’s carcass. Even more grotesquely unsettling is Henry’s strong suspicion that ‘it is not clear whether all men are of the same species or not, and so too with dogs and horses; [since] corpses which have been of the same species when living might differ in species from one another when corrupted.’
Negarestani - Undercover Softness (Collapse VI) p380