About the Authors

Perttu Seppä

perttu.seppa@helsinki.fi

Current address: Centre of Excellence in Biological Interactions, Department of Biological Sciences, University of Helsinki, Helsinki, Finland

Affiliation Department of Biology, Washington University in St. Louis, St. Louis, Missouri, United States of America

David C. Queller

Affiliation Department of Biology, Washington University in St. Louis, St. Louis, Missouri, United States of America

Joan E. Strassmann

Affiliation Department of Biology, Washington University in St. Louis, St. Louis, Missouri, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: PS DCQ JES. Performed the experiments: PS JES. Analyzed the data: PS JES. Contributed reagents/materials/analysis tools: PS DCQ JES. Wrote the paper: PS DCQ JES.