1. National Institute for Mathematical and Biological Synthesis, University of Tennessee; 1122 Volunteer Blvd., Suite 106 Knoxville TN 37996-3410 U.S.A.
2. Department of Zoology; University of Cambridge; Downing Street Cambridge CB2 3EJ U.K.
3. Department of Ecology and Evolutionary Biology; University of California Los Angeles; 621 Charles E. Young Drive South Los Angeles CA 90095-1606 U.S.A.
4. Department of Computer Science; San Diego State University; 5500 Campanile Dr San Diego CA 92182 U.S.A.
5. Lab of Ornithology; Cornell University; 159 Sapsucker Woods Rd Ithaca NY 14850 U.S.A.
6. Department of Biomathematics; North Carolina State University; Raleigh NC 27607 U.S.A.
7. Department of Ecology, Evolution and Behavior; University of Minnesota; 100 Ecology Building, 1987 Upper Buford Cir Falcon Heights MN 55108 U.S.A.
8. School of Integrated Science and Humanity, Florida International University; Modesto Maidique Campus, 11200 SW 8th Street, AHC-4, 351 Miami FL 33199 U.S.A.
9. Department of Mathematical Sciences; University of Texas at Dallas; 800 W Campbell Rd Richardson TX 75080 U.S.A.
10. Biological Sciences Graduate Program; University of Maryland; College Park MD 20742 U.S.A.
11. Department of Psychology & Neuroscience; University of St. Andrews; St Mary's Quad South Street St Andrews KY16 9JP U.K.
12. Department of Biostatistics and Medical Informatics; K6/446 Clinical Sciences Center, University of Wisconsin; 600 Highland Avenue Madison WI 53792-4675 U.S.A.
13. Department of Biology School of Mathematics and Statistics, University of St. Andrews; St Andrews KY16 9SS U.K.
14. Carl Sagan Center for the Study of Life in the Universe, SETI Institute; 189 Bernardo Ave, Suite 100 Mountain View CA 94043 U.S.A.
15. Department of Psychology; Cornell University; 211 Uris Hall Ithaca NY 14853-7601 U.S.A.
16. Department of Computer Science; Universitat Politecnica de Catalunya (Catalonia); Calle Jordi Girona, 31 08034 Barcelona Spain
17. Department of Psychology; University of Tennessee; Austin Peay Building Knoxville TN 37996 U.S.A.
18. National Marine Mammal Laboratory; AFSC/NOAA; 7600 Sand Point Way N.E. Seattle WA 98115 U.S.A.
19. Department of Psychology; University of Michigan; 530 Church St Ann Arbor MI 48109 U.S.A.
20. Division of Social Sciences; New College of Florida; 5800 Bay Shore Rd Sarasota FL 34243 U.S.A.
21. CNPS, CNRS UMR 8195, Université Paris-Sud, UMR 8195; Batiments 440-447, Rue Claude Bernard 91405 Orsay France
22. Department of Biology; College of Charleston; 66 George St Charleston SC 29424 U.S.A.
23. Department of Psychology; Hunter College and the Graduate Center, The City University of New York; 365 Fifth Avenue New York NY 10016 U.S.A.
24. Department of Physics; Pennsylvania State University; 104 Davey Lab University Park PA 16802-6300 U.S.A.
25. Department of Electrical and Computer Engineering; Marquette University; 1515 W. Wisconsin Ave. Milwaukee WI 53233 U.S.A.
26. Department of Biology; Queen College, The City University of New York; 65-30 Kissena Blvd. Flushing NY 11367 U.S.A.
27. Department of Cognitive Science; University of California San Diego; 9500 Gilman Drive La Jolla CA 92093-0515 U.S.A.
28. Department of Biological Sciences; University of Maryland Baltimore County; 1000 Hilltop Circle Baltimore MD 21250 U.S.A.
29. Institute of Evolutionary Biology and Environmental Studies, University of Zurich; Winterthurerstrasse 190 CH-8057 Zurich Switzerland
30. Department of Veterinary Medicine; University of California Davis; 1 Peter J Shields Ave Davis CA 95616 U.S.A.
31. Department of Psychology; University at Buffalo, The State University of New York; Park Hall Room 204 Buffalo NY 14260-4110 U.S.A.
32. Department of Evolution, Ecology, & Behavior; University at Buffalo, The State University of New York; Park Hall Room 204 Buffalo NY 14260-4110 U.S.A.
33. Department of Integrative Biology & Physiology; University of California Los Angeles; 612 Charles E. Young Drive East Los Angeles CA 90095-7246 U.S.A.
34. Division of Biological Anthropology; University of Cambridge; Pembroke Street Cambridge CB2 3QG U.K.
35. Department of Psychology; California State University San Marcos; 333 S. Twin Oaks Valley Rd. San Marcos CA 92096-0001 U.S.A.
36. Department of Anthropology; University of Georgia at Athens; 355 S Jackson St Athens GA 30602 U.S.A.
37. Department of Complex Systems Science; Graduate School of Information Science, Nagoya University; Furo-cho, Chikusa-ku Nagoya 464-8601 Japan
38. Biology Department; Woods Hole Oceanographic Institution; 266 Woods Hole Rd Woods Hole MA 02543-1050 U.S.A.
39. Department of Computer Science; Monterrey Institute of Technology; Ave. Eugenio Garza Sada 2501 Sur Col. Tecnológico C.P. 64849 Monterrey Nuevo León Mexico
40. Department of Philosophy; Montana State University; 2-155 Wilson Hall Bozeman MT 59717 U.S.A.
41. Centre for Biodiversity and Environment Research, University College London; Gower St London WC1E 6BT U.K.