To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 1 Vertical x-ray movie of a pocket gopher digging in the tunnel-tube. This movie shows one representative bout of digging, and the same bout is shown in 2. Tunnel-tube and Fourier methods for measuring three-dimensional medium reaction force in burrowing animals Alexis Moore Crisp, Clinton J. Barnes, and David V. Lee Journal of Experimental Biology 2019. 222:None-None; doi: 10.1242/jeb.213553 Download Original Video