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United States Department of Agriculture

Agricultural Research Service

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Image Number D209-1

To see whether wormholes funnel manure to drain pipes, ARS scientists trace wormhole connections to pipes by blowing smoke through pipes and watching it pour out of surface wormholes.

Photo by Jennifer Smeltzer.

640 pixels wide: (d209-1.jpg)

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Last Modified: 8/12/2016
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