Gymnotus Javari
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Gymnotus Javari
''Gymnotus'' is a genus of Neotropical freshwater fish in the family Gymnotidae found widely in South America, Central America and southern Mexico (36th parallel south to 18th parallel north). The greatest species richness is found in the Amazon basin. They are sometimes referred to by the English name banded knifefish, although this typically is reserved for the most widespread species, ''Banded knifefish, G. carapo''. Overall ''Gymnotus'' is the most widespread genus in the order Gymnotiformes. They are the only members of the subfamily Gymnotinae. Although not commonly eaten by humans, some members of this genus are used locally as fishing bait, and occasionally kept in aquariums. Habitat ''Gymnotus'' occur in most freshwater habitats within their geographic range, with the exception of large and deep river channels, and can tolerate little oxygen (survives by breathing air directly from the water surface) and areas affected by pollution,. One species, ''G. curupira'' can surv ...
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Rafinesque
Constantine Samuel Rafinesque-Schmaltz (; 22 October 178318 September 1840) was a French early 19th-century polymath born near Constantinople in the Ottoman Empire and self-educated in France. He traveled as a young man in the United States, ultimately settling in Ohio in 1815, where he made notable contributions to botany, zoology, and the study of prehistoric earthworks in North America. He also contributed to the study of ancient Mesoamerican linguistics, in addition to work he had already completed in Europe. Rafinesque was an eccentric and erratic genius. He was an autodidact, who excelled in various fields of knowledge, as a zoologist, botanist, writer and polyglot. He wrote prolifically on such diverse topics as anthropology, biology, geology, and linguistics, but was honored in none of these fields during his lifetime. Indeed, he was an outcast in the American scientific community and his submissions were automatically rejected by leading journals. Among his theories ...
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