Image: Impedance matching in electric fishes

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Description: Impedance matching in electric fishes. The sea is far more conductive than freshwater, so marine electric fishes generate a high current at low voltage, with many electrocytes in parallel. In freshwater, the higher resistance limits the current, so freshwater electric fishes have electrocytes stacked in series, providing a high voltage.
Author: Chiswick Chap
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License: CC-BY-SA-3.0
License Link: http://creativecommons.org/licenses/by-sa/3.0/
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