Fig. 8.

C-start escape response of stage 42 tadpole. Single frames at 5 ms intervals of C-start escape sequence of a stage 42 tadpole triggered by hyperthermia and filmed at 500 frames s^–1. From the first detectable movement (5 ms) to completion of the C-bend took 20 ms. The tadpole turned ∼160 degrees about a pivot point (P, at 10 ms) located at the position of the obex and then swam in approximately the opposite direction. The tadpole was 7 mm in length.