ACKNOWLEDGEMENTS
We thank the Center for Advanced Research Computing (UNM), the Center for Computational Research (UB), and T. L. Burkhard for computational support; the Museum of Southwestern Biology and the Burke Museum for providing samples; R. W. Flynn, C. T. Seaton, K. Marsh, N. Anderson, A. Merrill, N. E. Dokuchaev, B. Castle, B. Dearden, E. Youngberg Jr., R.L. Pharr, L. Dickerson for facilitating specimen acquisition; S. Liphardt and K. Derieg for thoughtful independent reviews. Research reported in this publication was supported by the Shadle Fellowship (American Society of Mammalogists), USGS Cooperative Agreement, NSF 1258010, and the National Institute of General Medical Sciences of the National Institutes of Health under award number P30GM110907. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health. Use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.