Movie S1 from In that vein: inflated wing veins contribute to butterfly hearing

Tympanal membrane mechanics. Tympanal displacement of animal 8 at its resonance frequency, 5.756 kHz, under intact and ablated conditions. The vibrational mode of the membrane and hence its internal mechanics are not affected by vein ablation. Only the effective force applied to the membrane at different frequencies is affected by this ablation. Note the difference in displacement scales between conditions.