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Species interaction! Photo #1 Hippo with Oxpecker Photo #2 Hippo with Hamerkop Photo #3 Hippo with Sacred Ibis & African Jacana (far right) The common hippopotamus, or hippo, is a large, mostly herbivorous, semiaquatic mammal and ungulate native to sub-Saharan Africa. It is one of only two extant species in the family Hippopotamidae, the other being the pygmy hippopotamus. The name comes from the ancient Greek for "river horse".
They live in areas with abundant water, as they spend most of their time submerged to keep their skin cool and moist. Considered amphibious animals, hippos can spend up to 16 hours per day in the water