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cavefish

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cavefish

Cave-dwelling fish, which may belong to one of several quite unrelated groups, independently adapted to life in underground waters. Cavefish have in common a tendency to blindness and atrophy of the eye, enhanced touch-sensitive organs in the skin, and loss of pigment.

The Kentucky blindfish Amblyopsis spelaea, which lives underground in limestone caves, has eyes that are vestigial and beneath the skin, and a colourless body. The Mexican cave characin is a blind, colourless form of Astyanax fasciatus found in surface rivers of Mexico.



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? Mentioned in ? References in periodicals archive
 
Last year, researchers raised the possibility that Mexican blind cavefish once could see but traded in their vision for bigger jaws and teeth (SN: 8/23/03, p.
Cavefish blinded by gene expression by Brownlee, Christen / Science News
Kind of like the cavefish who lose their sight because they are always in the dark.
The Sky So Blue: Wilderness and the Art of Introduction by DYSINGER, CAROL / Cross Currents
A CAVEFISH, which has eyes that cannot see, swims in the dark waters of caves.
Kids' Body Shop by Rogers, Judi / Vibrant Life
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