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The best animal photos of May 2012

By: Catie Leary on May 30, 2012, 5:36 p.m.
A sheep grins over a fence post.

Photo: Saif Dahlah/AFP/Getty Images

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Sheepish grin

A sheep bares its teeth on May 11 as it rests its head on a wooden fence post on the outskirts of the northern West Bank city of Jenin.