KELLY MELILLO-SWEETING, Dolphin Communication Project, PO Box 711, Old Mystic, Connecticut 06372-0711, U.S.A.; STEPHEN D. TURNBULL, Biology Department, University of New Brunswick, PO Box 5050, Saint John, New Brunswick E2L 4L5, Canada; TRISTAN L. GUTTRIDGE, Bimini Biological Field Station Foundation, South Bimini, Bahamas and School of Earth and Ocean Sciences, Cardiff University, Cardiff CF10...
