歐洲槲寄生的種子，能在安全地通過取食鳥類的腸胃後，以種皮外易沾黏的纖維細絲力學特性，黏附在寄主植物枝條上發芽
(The seeds of European mistletoe pass safely through a bird’s gut yet stick to branches where they germinate due to mechanical properties of the cellulosic filaments in their sticky coating.)