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About the Cover
Cover: Pomacentrus amboinensis is a territorial damselfish that inhabits the shallow waters of Australia's Great Barrier Reef. Experiments carried out by Siebeck and colleagues in the laboratory with freshly caught specimens reveal that the fish are able to perform visual discrimination tasks and distinguish between blue and yellow colours irrespective of their brightness (see article by U. E. Siebeck, G. M. Wallis and L. Litherland, pp. 354−360). This represents the first compelling evidence for the existence of colour vision in a coral reef fish and paves the way for further investigations into their 'perceptual abilities'. Photograph by U. E. Siebeck.
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