jewel cichlid


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jewel cichlid

n.
Any of several small, brilliantly colored cichlids of the genus Hemichromis of tropical Africa that are popular in home aquariums, especially H. letourneuxi. Also called jewelfish.
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Researchers have discovered that real communication is going on, with experiments like one conducted by Indiana University biology professor Bill Rowland with the jewel cichlid in 1979.
To confirm that fish respond in consistent ways to certain sounds and not to other cues will require more playback experiments in which underwater speakers produce the sounds and scientists track fishes' reactions, just as Rowland did with the jewel cichlid in laboratory tanks.