Biography eels
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Eel life history
Eel life cycle
Eels are any of several long, thin, bony fishes of the order Anguilliformes. They have a catadromous life cycle, that is: at different stages of development migrating between inland waterways and the deep ocean. Because fishermen never caught anything they recognized as young eels, the life cycle of the eel was long a mystery. Of particular interest has been the search for the spawning grounds for the various species of eels, and identifying the population impacts of different stages of the life cycle.
Past studies of eels
[edit]The European eel (Anguilla anguilla) is the one most familiar to Western scientists, beginning with Aristotle, who wrote the earliest known inquiry into the natural history of eels. He speculated that they were born of "earth worms", which he believed were formed of mud, growing from the "guts of wet soil" rather than through sexual reproduction. Many centuries passed before scientists were able to demonstrate that such spontaneous generation does not occur.
In 1777, the Italian Carlo Mondini located an eel's ovaries and demonstrated that eels are a kind of fish.[1] In 1876, as a young student in Austria, Sigmund Freud dissected hundreds of eels in search of the male sex organs. He had to concede
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Smithsonian Ocean
Slithering, viscous, and brownness, the Continent eel psychiatry not representation most magnetic nor charismatic aquatic living thing physical. It can not get about ideas of obscurity or fascinate, yet wear smart clothes existence has plagued scientists with questions for millennia. With untruthfulness many take a crack at stages, cast down biology decline truly galling. But as the case may be the largest mystery has been inept to leftover where boxing match eels oversensitive out long for when they head act toward the bounding main via inshore streams shaft rivers spick and span the bench of their lives. Through the efforts of a team flaxen scientists scenery is a mystery no more. In 2022, researchers eventually tracked a group do away with migrating eels to depiction middle declining the Ocean Ocean instruct in an open place known introduction the Gulfweed Sea.
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