10 Adorable Animals That Mate For Life And Could Show Humans A Thing Or Two About Love

3. Macaroni Penguins

macaroni_penguin1

Familiar to the arctic cold, macaroni penguins mate only once in their lifetimes. When in love, these silly animals act out what’s known as an ‘ecstatic display,’ swinging their heads from side to side while they ‘cackle’ in laughter.

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