Figure 3:
(A) Side-view photo of a Daphnia, the planktonic prey of paddlefish. Its head and antennae are to the right.
(B) Oscillatory electrical activity recorded near a tethered Daphnia. The large waves are due to episodic beats of the antennae for locomotion. The smaller 6-7 Hz waves are due to continuous rhythmic beating of the feeding legs.
(C) Power spectrum of Daphnia electrical signals.