Acknowledgements
We thank the Gans Fund for funding this study. MS was also funded by the
European Union H2020 – Marie Skłodowska-Curie Global Fellowship
(GA101024700). Special thanks to the people and institutions who
provided specimens for our sample: Anthony Herrel (MNHN), David Kizirian
and Lauren Vonnahme from the herpetology collection of the American
Museum of Natural History (New York), Nicolas Vidal from the herpetology
collection of the Museum National d’Histoire Naturelle (Paris), Marc
Herbin (MNHN), Boaz Schacham from the herpetology collection of
Jerusalem, Rémi Ksas and Antoine Planelles (Venomworld), Ya-Wei Li,
Vincent Prémel, Ludovic Faure, Yoan Eynac and Karine Falco. We thank
Mathilde Bouchet from ENS Lyon for her time helping to set the specimens
and teaching MS to use the CT scanner, and Adrien Izzet for his
explanations about curvature and angles.
Conflicts of interest/Competing interests: The authors declare
no conflict of interest.
Availability of data and material: The Rdata and Rcode will be
provided in a Dryad repository upon acceptance of the manuscript and the
3D scans will be uploaded in MorphoSource.
Authors’ contributions: MS and MD conceived and led the
research project. MS, CH, AD help collecting the data. MS led the
writing of the manuscript. RC, RS, JM, AH helped in writing the grant
proposal. All authors contributed to the interpretation and discussion
of the results, and to the editing of the manuscript.