Range
Historically, hippopotamuses have been found throughout sub-Saharan Africa, but most populations have now disappeared or are greatly reduced in size. The largest current populations remain in the East African countries including Tanzania, Zambia and Mozambique (8) (9).
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View a distribution map for this species at UNEP World Conservation Monitoring Centre.
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Habitat
Hippopotamuses require water deep enough to cover them, in rivers and lakes that are close to pasture for grazing (2) (8). Rapids are avoided, with gently-sloping, firm-bottomed beds preferred, where herds can rest half-submerged and calves can nurse without swimming. Submersion in water is necessary to prevent the thin, hairless skin from overheating and dehydration occurring (2).