“ Although the membrane looks as though it has only two layers of skin, there is a thin layer of muscles that enables these squirrels to change the curvature of the gliding surface in order to adjust its aerodynamic qualities. ”
„ Kuigi lennus näib koosnevat vaid kahest nahakihist, on selles tegelikult ka õhuke lihaskiht, mille abil saavad loomad... liuglemist reguleerida. ”