蜘蛛躲藏在花叢,它藉擬態躲避鳥類獵食,等待獵物到來。帝王斑蝶(Danaus plexippus,左)與總督蝴蝶(Limenitis archippus,右)在視覺上相似,而帝王斑蝶對鳥類捕食者來說有毒且氣味難聞,但總督蝴蝶則否,鳥類捕食者會同時避免接觸它們,這是一個擬態的例子。由 Henry Walter Bates 製作的圖片展示了袖粉蝶屬物種(頂行,第三行)和各種綃蝶族物種(蛺蝶科,第二行,底行)之間的貝氏擬態。偽裝現象發生於Ctenomorphodes chronus這種竹節蟲物種之中,使該物種個體在視覺上與桉屬物種的枝條相似。
貝氏擬態(Batesian mimicry,以英國博物學家亨利·沃爾特·貝茲(Henry Walter Bates)命名),於1861年在林奈學會發表論文,說明亞馬遜河的粉蝶會模仿毒蝶屬,保護自己免於被捕食,一个物种拟态模仿另一个成功的物种,显得有毒或者是无食用价值。但该拟态并不会攻击掠食者。例如,一种鹿子蛾会拟态成为黄胡蜂,但它并不能螫。但掠食者还是会把它当成黄胡蜂回避。例如尺蠖形態及行為與樹枝或莖相仿,藉以躲避獵食。
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