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Fig. 5. Illustration of the computer simulation demonstrating how the mole-rat might detect the diffraction waves from the obstacle corners. In this simulation the mole-rat generates at least two seismic waves (the source was at a distance a=30 cm and b=35 cm from the obstacle boundary) and perceives the reflection and diffractions waves using receptors in the forepaws and hindpaws. (A) The mole-rat's position relative to the obstacle boundary while it generates the two seismic waves. (B) The relative time delay of the reflected and diffracted waves as they should reach the mole-rat's left forepaws and left hindpaws from each of the two sources.





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