ACKNOWLEDGEMENTS

We kindly thank Soile Alatalo, Hannele Parkkinen, and Dominika Bujnakova for their assistance in the lab. We also thank Pavel Tomkovich from the Zoological Museum of Moscow University, Timur Khilkov and personnel of the Ecological-biological center of Kim Andreev in Petrozavodsk, Marina Yakovleva from the Kivach Museum and the Kirkkolahti zoo for providing the samples for this study.