Contributions to Zoology, 85 (4) 457-470 (2016) Paul Kammerer and the inheritance of acquired characteristics Jacques J.M. van Alphen1, 2, 3*, Jan W. Arntzen1* 1 Naturalis Biodiversity Center, P.O. Box 9517, 2300 RA Leiden, the Netherlands 2 Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, P.O. Box 94248, 1090 GE Amsterdam, the Netherlands 3 E-mail:
[email protected] * Both authors contributed equally to this work Key words: amphibia, Arthur Koestler, Darwinism, epigenetics, evolution, Lamarckism Abstract Introduction The Austrian biologist Paul Kammerer (1880-1926) would by On August 7, 1926 the American herpetologist Noble now be long forgotten if Arthur Koestler had not published published in Nature evidence of fraud with scientific ‘The case of the Midwife toad’, in which he depicted Kammerer as a victim of the paradigm battle between neo-Darwinists and results of Paul Kammerer (Noble, 1926). Six weeks Lamarckists. Kammerer is still on the scientific agenda, with at later Kammerer committed suicide. Kammerer was a least 10 publications since 2005. The question is still out if biologist in Vienna, Austria. He studied toads, sala- Kammerer fabricated his scientific results or not. In this paper manders and lizards and Noble had discovered that the we provide the evidence that Kammerer consistently faked ex- front legs of his last preserved specimen of the Midwife perimental results. We show (1) that the design of his experi- toad (Alytes obstetricans (Laurenti, 1768)) had been in- ments could never have produced the results that he claimed, (2) that the assumptions he made about the developmental biol- jected with India ink to suggest the presence of nuptial ogy of the species he studied are falsified by recent research, pads.