Chimeras The Ethics of Creating Human-Animal Interspecifics Inaugural-Dissertation zur Erlangung des Doktorgrades der Philosophie an der Ludwig-Maximilians-Universität München vorgelegt von Constanze Huther (Doctoral thesis submitted to Ludwig-Maximilians-Universität Munich, Germany, in partial fulfilment of the requirements for the degree of Dr. phil.) Referent: Prof. Dr. Wilhelm Vossenkuhl Korreferent: PD Dr. Ulrich Metschl Mündliche Prüfung: 20. 1. 2009 ii Contents Contents Preface ...................................................................................................................................... v Acknowledgements...............................................................................................................viii Chapter 1: Biological Basics....................................................................................................1 A. Naturally occurring chimeras and other mixtures...............................................................1 B. Human-made chimeras and other interspecifics .................................................................4 1. Roots of chimera research ..................................................................................................4 2. Intraspecific animal-to-animal (and human-to-human) chimeras.................................7 3. Interspecific animal-to-animal chimeras............................