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Gophers will not build mounds unless they cannot burrow downwards
Full Transcript
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Gophers will not build mounds
00:00:03.000 --> 00:00:05.006
unless they cannot burrow downwards.
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Movie Summary
Using cutting-edge technologies such as ground penetrating radar (GPR), LIDAR (Light Detection and Ranging), and 3-D imaging, scientists research fascinating underworlds of secret tunnel networks, ancient structures, and bizarre g...