About the Authors

Horst Kierdorf

kierdorf@uni-hildesheim.de

Affiliation Department of Biology, University of Hildesheim, Hildesheim, Germany

Uwe Kierdorf

Affiliation Department of Biology, University of Hildesheim, Hildesheim, Germany

Kai Frölich

Affiliations Department of Biology, University of Hildesheim, Hildesheim, Germany, Tierpark Arche Warder e.V., Warder, Germany

Carsten Witzel

Affiliation Department of Biology, University of Hildesheim, Hildesheim, Germany

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: HK UK CW. Performed the experiments: KF. Analyzed the data: HK UK CW. Contributed reagents/materials/analysis tools: HK UK KF CW. Wrote the paper: HK UK.