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11 animals that mate for life

By: Bryan Nelson on Feb. 24, 2016, 3:20 p.m.
turtle doves

Photo: Andy Morffew/flickr

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Turtle doves

There's a reason that turtle doves come in pairs of two in "The Twelve Days of Christmas." These emblems of love and faithfulness have even inspired poetry in Shakespeare, being the subject of his poem, "The Phoenix and the Turtle."

Turtle doves are also known as mourning doves or rain doves. A male courts a female by flying to her noisily, with his wings making a distinct whistling sound. He then puffs out his chest, bobs his head repeatedly, and calls to her. She's smitten for life.