Wikipedia:POTD column/September 5, 2006

A pod of hippopotamuses in South Luangwa National Park, Zambia, the southernmost of three national parks in the valley of the Luangwa River. Hippo pods generally number up to about 40 individuals. Hippos spend most of their time in shallow water, rarely coming out of that depth. Most hippos that look as though they are floating are in fact standing or lying on the bottom.

Photo credit: Paul Maritz
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