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Ghost Knifefish Make Electric 'Chirps' to Spot Where Other Fish are

Rejected submission by upstart at 2023-01-20 17:18:35
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Ghost knifefish make electric 'chirps' to spot where other fish are [newscientist.com]:

It has long been assumed that when one brown ghost knifefish “chirps” at another knifefish by altering the electrical field it produces, it is communicating with the other fish. But according to Livio Oboti [hu-berlin.de] at the Humboldt University of Berlin, these chirps are instead a kind of probe that helps a fish improve its electrolocation of objects [newscientist.com], especially other electric fish.

Weakly electric fish generate a low-power electric field [newscientist.com] around their body, which they sense with special receptors in their skin. This allows them to detect …

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