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Ghost knifefish make electrical ‘chirps’ to identify the place different fish are



It is lengthy been thought that {the electrical} chirps of brown ghost knifefish are for communication, however they may as an alternative assist enhance electrolocation


20 January 2023

A brown ghost knifefish

Alessandro Mancini / Alamy Inventory Photograph

When one brown ghost knifefish “chirps” at one other knifefish by altering {the electrical} discipline it produces, it has lengthy been assumed it’s speaking to with the opposite fish. However in line with Livio Oboti on the Humboldt College of Berlin, these chirps are as an alternative a sort of probe that helps a fish enhance its electrolocation of objects, particularly different electrical fish.

Weakly electrical fish generate a low-power electrical discipline round their physique, which they sense with particular receptors of their pores and skin. This permits them to detect …

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