REFERENCES
			Catton, C., 1995. Dolphins. St. Martin's Press, New York.
			Caldwell, M.C., Caldwell, D.K., and P.L. Tyack, 1990. Review of the Signature-Whistle Hypothesis for the Atlantic Bottlenose Dolphin. In: The Bottlenose Dolphin. Leatherwood, S., and R.R. Reeves (eds). Academic Press, San Diego.
		Connor, R.C., Smolker, R.A., and a.F. Richards, 1992. Two Levels of Alliance Formation Among Male Bottlenose Dolphins. Proceedings of the National Academy of Science, USA. 89: 987-990.
	Pryor, K., and K.S. Norris, 1991. Dolphin Societies: Discoveries and Puzzles. University of California Press, Berkeley.
	Sayigh, L.S., Tyack, P.L., Wells, R.S., Scott, M.D., and A.B. Irvine, 1995. Sex Difference in Signature Whistle Production of Free-Ranging Bottlenose Dolphins. Behavioural Ecological Sociobiology. 36: 171-177.
		Sayigh, L.S., Tyack, P.L., Wells, R.S., Solows, A.R., Scott, M.D., and A.B. Irvine, 1998. Individual Recognition in Wild Bottlenose Dolphins: A Field Test Using Playback Experiments. Animal Behaviour. 57: 41-50.
	Tyack, P.L., 1997. Development and Social Functions of Signature Whistles in Bottlenose Dolphins Tursiops truncatus. Bioacoustics. 8: 21-46.
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