Fig. 3. (A) Kinematic profiles from a representative feeding in Eurycea guttolineata showing required instantaneous muscle-mass-specific power versus time in the upper trace, and instantaneous acceleration, velocity, and smoothed and interpolated position versus time in the lower traces. Open circles in the position trace indicate raw position data, which correspond exactly to the video frames shown in B. (B) Image sequence of the same feeding. Scale bar, 5 mm; times (ms) are from the start of tongue projection.