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Hippopotamus: Pygmy Hippopotamus
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There are two species, or kinds, of hippopotamus: the common or river hippopotamus and the pygmy hippopotamus. The common hippopotamus weighs about 3 tonnes (male) and 1.5 tonnes (female). The pygmy hippopotamus is much smaller, standing at less than 1 metre high at the shoulder.
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At 21 inches, Aldo, a three-week-old pygmy hippopotamus is just the size of a human baby. Anais, the mother hippo, keeps an eye on son Aldo, at the Vincennes zoo outside Paris
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Pygmy Hippopotamus