March 28, 2010

Sunk Hippo

The word "hippopotamus" derives from the ancient Greek words hippos(horse) and potamos(river), meaning "horse of the river". Hippos spend most of their days wallowing in the water or the mud, with the other members of their pod. The process of surfacing and breathing is automatic, and even a hippo sleeping underwater will rise and breathe without waking.

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