To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie S2 XROMM animation of the first and second vertebral and sternal ribs during typical deep breathing in the savannah monitor (Varanus exanthematicus) savannah02 superimposed upon biplanar x-ray video and the same XROMM animation alone (inset). Journal of Experimental Biology ; doi: 10.1242/jeb.189449 Download Original Video