About the Authors
Sackler Institute for Comparative Genomics, American Museum of Natural History, New York, New York, United States of America
Department of Biology, University of Maryland, College Park, Maryland, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: RHB GSW. Performed the experiments: RHB GSW. Analyzed the data: RHB GSW. Wrote the paper: RHB GSW.