Fig. 6. Sample acceleration traces from the model of a collision of two 39 000 kg sperm whales. The acceleration experienced by the target whale is shown with the solid line and the acceleration experienced by the attacking whale is shown by the dashed line. In this case, the ratio of the damping constants was 16 (2 040 480 N s m^-1 for the tissue damper and 127 530 N s m^-1 for the spermaceti damper).