Analysis of information sources in references of the Wikipedia article "Stargazing darter" in English language version.
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"There is, technically, no snail darter," said Thomas Near, curator of ichthyology at the Yale Peabody Museum [...] the snail darter, Percina tanasi, is neither a distinct species nor a subspecies. Rather, it is an eastern population of Percina uranidea [...] early researchers "squinted their eyes a bit" when describing the fish, because it represented a way to fight the Tennessee Valley Authority's plan to build the Tellico Dam
A new study by Yale researchers shows that the tiny fish, discovered in a lower stretch of the Little Tennessee River in 1973, is not a distinct species at all, meaning it was never endangered.