About the Authors

Robert Hermes

hermes@izw-berlin.de

Affiliation Department Reproduction Management, Leibniz Institute for Zoo and Wildlife Research, Berlin, Germany

Frank Göritz

Affiliation Department Reproduction Management, Leibniz Institute for Zoo and Wildlife Research, Berlin, Germany

Joseph Saragusty

Affiliation Department Reproduction Management, Leibniz Institute for Zoo and Wildlife Research, Berlin, Germany

Monica A. Stoops

Affiliation Center for Conservation and Research of Endangered Wildlife, Cincinnati Zoo and Botanical Garden, Cincinnati, Ohio, United States of America

Thomas B. Hildebrandt

Affiliation Department Reproduction Management, Leibniz Institute for Zoo and Wildlife Research, Berlin, Germany

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: RH FG MS TH. Performed the experiments: RH FG MS TH. Analyzed the data: RH TB MS JS. Contributed reagents/materials/analysis tools: RH FG TH. Wrote the paper: RH JS.