About the Authors

Inga Tiemann

tiemanni@uni-duesseldorf.de

Affiliations Bruno-Dürigen Institute, Poultry Research Centre, Rommerskirchen, Germany, Research Group Comparative Neurobiology and Evolutionary Research, Institute of Anatomy, Heinrich-Heine-University, Düsseldorf, Germany

Gerd Rehkämper

Affiliation Research Group Comparative Neurobiology and Evolutionary Research, Institute of Anatomy, Heinrich-Heine-University, Düsseldorf, Germany

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: IT GR. Performed the experiments: IT. Analyzed the data: IT. Contributed reagents/materials/analysis tools: IT GR. Wrote the paper: IT GR.