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The razorback sucker, thought to have disappeared from the Grand Canyon in the 1990s, has been rediscovered there by researchers, who believe conditions are right for naturally reproducing populations. (BLM/Courtesy)

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'So long, suckers' no longer true in Grand Canyon

WASHINGTON - Researchers have found evidence that razorback suckers, once thought to have disappeared from the Grand Canyon, have moved upriver from Lake Mead.