Penguin

　　After the movie "March of the Penguins" came out, many conservative groups cited Emperor penguins as role models for monogamy. While it's true that these flightless Antarctic birds pair up to copulate and raise young, they only stay together for one mating season, after which they normally switch partners.
　　
　　企鵝

　　當影片《帝企鵝日記》播出后，許多人都將帝企鵝奉為單配偶動物的典范。事實上，在交配季節里，企鵝只有一個性伴侶且夫婦共同哺育幼崽，但他們的忠貞只能保持一個交配季節。等到了下一個交配季節，它們通常還會尋找新的伴侶

Anglerfish

　　This deep-sea fish takes monogamy to a bizarre new level. When mating, a male anglerfish bites into the flesh of his female mate, attaching to her body. His mouth fuses with her skin, and their bloodstreams merge. Once joined, the male degenerates until he's simply a source of sperm for the female. A female will often have several males attached to her at once.

　　琵琶魚

　　生活在深海中的琵琶魚有十分奇特的一夫一妻制。雄魚交配時會在雌魚側腹部咬一口。雌魚從體內釋放的一種特殊酶讓雄魚的嘴和雌魚的皮膚結合在一起，且雄魚和雌魚的血液開始流通。一旦結合為一體后，雄魚便會不斷萎縮，直至成為雌魚體外能產生精子的生殖腺。一條雌性琵琶魚通常會同時被數條雄魚附體

Wolf

　　Like penguins, wolves practice serial monogamy, meaning they can have several mates throughout a lifetime, but only one at a time. A female wolf will typically mate with one male, but will take another if her mate dies, gets kicked out of the pack or is so injured or sick that he can't breed.

　　狼

　　和企鵝一樣，狼會在不同階段有不同的伴侶，這意味著它們一生會有多個伴侶，但一個階段只有一個。而母狼基本上都只與一只公狼交配，除非這只公狼死掉、被逐出狼群或是因受傷和體弱等原因不能繁殖后代


Bald eagles

　　The poster birds for fidelity, bald eagles are monogamous and remain faithful to each other until one dies. Recent studies of DNA from the feathers of other eagle species support the idea that monogamy is the norm among raptors.

　　白頭禿鷹

　　白頭禿鷹是忠貞不渝的象征，它們不但保持著一夫一妻制，且直到配偶死去前都不會有其它性伴侶。近期的研究表明，對鷹類雄性的DNA檢測證實，肉食鳥類動物基本上都是單配偶動物。