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Still Waters

Serenading Lusitanian toadfish drowned out by water traffic

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Still Waters

During spring, Lusitanian toadfish (Halobatrachus didactylus) suitors form choirs in Portugal's Tagus estuary to serenade the females, vibrating their swim bladders to produce a call, known as a boatwhistle, which sounds like a vibrating cell phone. The males also listen in on each other to check whether anyone is intruding on their territory. But sadly, their performances are no longer conducted in hushed reverence. Revving motorboats and churning ferry propellors and engines fill the water with unwelcome noise.

https://phys.org/news/2021-06-serenading-lusitanian-toadfish-traffic.html

https://journals.biologists.com/

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