In 2000, the oblong rocksnail — about the size of a nickel with a yellow body and a banded shell — was declared extinct in its home, Alabama’s Cahaba River Basin.
But a graduate student has rediscovered these snails on a short stretch within the Cahaba River, where it crosses the Bibb and Shelby county lines.
"To be able to find a species that was thought to be extinct is always encouraging," said the graduate student, Nathan Whelan of the University of Alabama, Tuscaloosa, in a statement, "especially considering biodiversity and conservation stories are not typically positive these days."
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