1. Department of Ecology and Evolutionary Biology, University of California Santa Cruz, Santa Cruz, CA, 95060. USA
2. Department of Physiological Sciences, College of Veterinary Medicine, Oklahoma State University, Stillwater, OK 74078. USA
3. Department of Fish, Wildlife and Conservation Ecology, New Mexico State University, Las Cruces, NM 88003, USA
4. Working Dogs for Conservation, P. O. Box 280, Bozeman, MT 59771, USA
5. Department of Human Behavior, Ecology, and Culture. Max Planck Institute for Evolutionary Anthropology. Leipzig, Germany
6. Paleogenomics & Bio-Archaeology Research Network, University of Oxford, Oxford, UK
7. National Human Genome Research Institute, National Institutes of Health, Bethesda, MD 20892. USA
8. Department of Animal and Rangeland Sciences, Oregon State University, Corvallis, OR 97331. USA
9. Dog Aging Project, Department of Laboratory Medicine and Pathology, University of Washington School of Medicine, Seattle, WA 98195. USA
10. School of Environmental and Forest Sciences, University of Washington, Box 352100, Seattle, WA, 98195. USA
11. Colgate University, Department of Biology, 13 Oak Dr., Hamilton, NY, 13346. USA