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Fig. 7. Scatter plot showing how the glide angle increases with horizontal range
until it reaches approximately 45°, represented by a broken line, after
which the glide ratio begins to improve slightly. High take-off angles and
limited time spent in the air are the factors responsible for the low vales of
glide angle across low ranges. Glide angle is strongly negatively correlated
with range above 4 m (r=0.816, P<0.001) where
higher glide speeds enable northern flying squirrels to exhibit superior lift
to drag ratios.