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Figure 4


Fig. 4. Diagram summarizing the four stages of a spinning leap. (A) Animal is completely submerged while corkscrewing, (B) pectoral fins emerge, (C) the dorsal fin emerges, and (D) the flukes emerge and the animal is freely spinning while airborne. The relationship is shown between rotation speed of the dolphin body and resistive (red) and drive (blue) torques developed underwater. Arrowheads indicate the direction of the opposing torques. The surface of the water is indicated by the light blue line and the magnitude of the rotational speed by the size of the green ovals.





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