First of all, I would like to thank Kolmården Zoo and the staff at the dolphinarium for allowing me to study their dolphins and be a part of their team.

Thank you Sussie, Therése, Christian, Elin, Josefin, Sandra, Adrian, Ida, Megan, Jenni, Chema and Linda!

A special thank you to Therése Höglin and Josefin Larsson for their contribution during the training process, and to Elin Ström and Isabella Clegg for allowing me to use their collected data (WtP-scores) in my study.

I would also like to acknowledge ÅF Consult, Stockholm, making this study possible by creating all of the Whistle caller components.

Lastly, a big thank you to my supervisor Mats Amundin for entrusting me with this project, and for supporting and encouraging me throughout the process.

I just finished writing my thesis on dolphins...

... I should have used paper...