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Aldo, a three-week-old pygmy hippopotamus, (Choeropsis liberiensis) eats at the Vincennes zoo, outside Paris, Tuesday, June 26, 2007. Aldo looks, eats and lazes like a hippopotamus but he is only about as big as a human baby, at 53 centimeters (21 inches). This pygmy hippopotamus, born earlier this month, is one of only a few dozen in Europe, bred in a special program to boost the rare species. (AP Photo/Jacques Brinon)