1. Department of Biology; Indiana University, 915 East 3rd Street, Bloomington, IN 47405; USA
2. School of Integrative Biology and Institute for Genomic Biology; University of Illinois, 505 South Goodwin Avenue; Urbana, IL 61801 USA
3. School of Biological and Chemical Sciences; Queen Mary, University of London, Mile End Road; London E1 4NS UK
4. Department of Ecology and Evolutionary Biology; Department of Molecular, Cellular, and Developmental Biology, University of Michigan; Ann Arbor MI USA
5. Department of Ecology and Evolutionary Biology; University of Connecticut, Storrs; CT 06269 USA
6. Department of Biology; McMaster University; 1280 Main St. West Hamilton Ontario L8S 4K1 Canada
7. Department of Biochemistry and Cell Biology; Stony Brook University, 412 Life Sciences Building, Stony Brook; NY 11794-5215 USA
8. University of Cologne; Institute of Developmental Biology, Biocenter, Zülpicher Straße 47b; D-50674 Cologne Germany
9. Department of Biology; McGill University, 1205 Avenue Docteur Penfield; Montréal Québec H3A 1B1 Canada
10. Departamento de Zoologia; Instituto Biociências, Universidade de São Paulo, Rua do Matão; Travessa 14, no. 101 05508-090 São Paulo Brazil
11. Department of Biological Sciences; Kent State University; OH USA
12. Biology Department; Romberg Tiburon Center for Environmental Studies, San Francisco State University, 3150 Paradise Drive, Tiburon; CA 94920 USA
13. Department of MCD Biology; University of California; Santa Barbara CA USA
14. Department of Biology, Swarthmore College; Swarthmore, Pennsylvania 19081, USA and Biotechnology Institute, University of Helsinki; 00014 Helsinki Finland
15. Department of Biology; Dalhousie University, Halifax, Nova Scotia; CA B3H 4R2 USA
16. Department of Philosophy, Minnesota Center for Philosophy of Science; University of Minnesota; USA
17. Department of Biology; Duke University, Box 90338; Durham NC 27708 USA
18. Department of Molecular Genetics and Microbiology; University of Florida, P.O. Box 103610; Gainesville FL 32610 USA
19. Marine Biological Laboratory; 7 MBL Street, Woods Hole; MA 02543 USA
20. Plant and Microbial Biology, Department of Integrative Biology; University and Jepson Herbaria, University of California; Berkeley CA USA
21. Biological and Environmental Sciences; University of Stirling, FK9 4LA; Scotland UK
22. Department of Organismic and Evolutionary Biology, Department of Molecular and Cellular Biology; Harvard University, 16 Divinity Avenue, BioLabs 4103, Cambridge; MA 02138 USA