1. Departments of Psychology and Biology; University of Hawaii at Hilo; 200 West Kawili Street Hilo Hawaii 96720 U.S.A.
2. The Dolphin Institute; PO Box 6279 Hilo Hawaii 96720 U.S.A.
3. State of Hawaii Department of Land and Natural Resources; 1151 Punchbowl Street #330 Honolulu Hawaii 96813 U.S.A.
4. Marine Mammal Institute and Department of Fisheries and Wildlife; Hatfield Marine Science Center; Oregon State University; 2030 SE Marine Science Drive Newport Oregon 97365 U.S.A.
5. Division of Social Sciences; New College of Florida; 5800 Bay Shore Road Sarasota Florida 34243 U.S.A.
6. Cetacean Assessment and Ecology Program; NOAA Marine Mammal Laboratory; Alaska Fisheries Science Center; 7600 Sand Point Way NE Seattle Washington 98115 U.S.A.
7. Biology Department; University of Massachusetts Dartmouth; 285 Old Westport Road Dartmouth Massachusetts 02747 U.S.A.
8. School of Applied Sciences; Edinburgh Napier University; Sighthill Court Edinburgh EH11 4BN Scotland United Kingdom
9. Keuka College; 141 Central Avenue Keuka Park New York 14478 U.S.A.
10. Hawaii Marine Mammal Consortium; PO Box 6107 Kamuela Hawaii 96743 U.S.A.
11. Marine Acoustics, Inc.; 2 Corporate Place, Suite 105 Middletown Rhode Island 02842 U.S.A.
12. Tethys Research Institute; Via Benedetto Marcello 43 20124 Milan Italy
13. Acoustic Research Laboratory; Tropical Marine Science Institute; National University of Singapore; 18 Kent Ridge Road Singapore 119227
14. Department of Psychology; University at Buffalo; The State University of New York; Buffalo New York 14260 U.S.A.
15. School of Nursing and Dental Hygiene; University of Hawaii at Manoa; 2528 McCarthy Mall Honolulu Hawaii 96822 U.S.A.
16. Marine Mammal Research Consultants; 520 Lunalilo Home Road #6106 Honolulu Hawaii 96825 U.S.A.
17. Department of Psychology; McMicken College of Arts & Sciences; University of Cincinnati; 7148 Edwards One Cincinnati Ohio 45221 U.S.A.
18. Institute for Marine Mammal Studies; 10801 Dolphin Lane Gulfport Mississippi 39503 U.S.A.
19. Department of Psychology & Biological Foundations of Behavior Program; Franklin & Marshall College; PO Box 3003 Lancaster Pennsylvania 17604 U.S.A.
20. Tiergarten Nuernberg; Am Tiergarten 30 D-90480 Nuremberg Germany
21. Chicago Zoological Society's Sarasota Dolphin Research Program; ℅ Mote Marine Laboratory; 1600 Ken Thompson Parkway Sarasota Florida 34236 U.S.A.