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History
- November 25, 2014.
Copyright
The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-NC-ND 4.0 International license.
Author Information
- 1Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA
- 2Potawatomi Zoo, South Bend, IN 46615, USA
- *Correspondence: Charles C. Y. Xu, Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA; Fax: 574-631-7413; E-mail: charles.cong.xu{at}gmail.com