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Fig. 3. Ventral projection of the wing-tip movements of Glossophaga
soricina flying at 1.7 m s-1. It can be seen that the backward
flick of the wingtips is pronounced. The photographs show a hovering bat from
below (left) and from the side (right) twisting the wings in the upstroke as
in slow flight. T, top position; MD, middle position; B, bottom position of
the wings, where the numbers refer to the numbers on the track. The time
between each dot (numbered) is 0.0082 s for the two last (left) strokes. Scale
bar, 5 cm.
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