Anglerfish, the amazing sexual parasites of the abyss 
By Laura Camón IS Source: elpais 3/7/2023
Laura Camón
Credit: Alamy / contacto
The study of this unique fish, whose males are born to become mere reproductive appendages of the females, could help save lives
 

Bjarni Saemundsson (b. 1867) was the first Icelandic biologist who devoted his life to studying fishing; he did it with no funding, whenever his job as a high school teacher allowed it. In May 1917, a very peculiar fish that appeared in the nets of a fishing boat was taken to Saemudsson for study. It was a female anglerfish of the Ceratias holboelli species. In an article published in 1922, he expressed his amazement:

 
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