[[File:Digesting Duck.jpg|thumb|300px|[[René Descartes]], in [[The World (Descartes)|De homine]] (1662), claimed that non-human animals could be explained reductively as [[automaton|automata]]; meaning essentially as more mechanically complex versions of this [[Digesting Duck]]. | [[File:Digesting Duck.jpg|thumb|300px|[[René Descartes]], in [[The World (Descartes)|De homine]] (1662), claimed that non-human animals could be explained reductively as [[automaton|automata]]; meaning essentially as more mechanically complex versions of this [[Digesting Duck]]. |