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Many people have contributed in various ways to this study, I am particularly grateful to:

Mats Amundin, my supervisor, for his support and especially for his crazy idea of an “elephant telephone”; Bengt Sjölén, who provided the technical solution and developed the software for the acoustic link; Richard Kirkden, for his help with the underlying theory and for his valuable comments on the manuscript; Olaf Behlert, curator of the Cologne elephant house, and the Cologne elephant keepers for their willingness to participate in this project; Meike Artelt, for letting me use her recorded elephant rumbles; Mary Holmgren, for her help with the experimental set-up; Ulf Pettersson and Per Cedergren, for their help with the internet connection; Matthias Laska, for his help with German translation and Erik Häggmark, for his technical assistance and invaluable support!

I would also like to thank Nautilius Gym, for donating the weight lifting machines, BRL Electronics, for providing the microphones and speakers and Nordisk Mobiltelefon for providing mobile internet service.

Last , but not least, I would like to send the warmest thanks to the Kolmården elephant keepers Thomas Antmar, Andreas Levestam, Emelie Olander and Dan Köhl, for all their assistance and patience during this project!

Responsible for this page: Agneta Johansson
Last updated: 05/26/08