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CHAMPAIGN, Ill. (AP) - Every spring, fishermen wait for a peculiar-looking fish to swim up the Wabash River between southern Illinois and Indiana.
The shovelnose sturgeon, a prehistoric survivor covered with bony plates and wearing a strip of barbs down its back, is plentiful in the river and live up to 60 years.
But scientists worry that the decline of another type of sturgeon half a world away could mean trouble for the shovelnose, North America's smallest sturgeon.
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