I've always found Hippopotamus to be surprisingly intimidating. They're large swimming tanks with teeth. 
I think they look cute. They are mostly herbivorous semiaquatic mammals native to sub-Saharan Africa.
I might disagree with cute. Don't they like have loose stool and fling it everywhere with there tails to mark their territory?
Hippopotamus
The common hippopotamus ("Hippopotamus amphibius"), 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 ("Choeropsis liberiensis" or "Hexaprotodon liberiensis"). The name comes from the ancient Greek for "river horse" (). After the elephant and rhinoceros, the common hippopotamus is the third-largest type of land mammal and the heaviest
Ruwenzori otter shrew
The Ruwenzori otter shrew ("Micropotamogale ruwenzorii") is a species of semiaquatic dwarf otter shrew of the family Potamogalidae. It is found in Democratic Republic of the Congo, Rwanda, and Uganda. Otter shrews are shrew-like afrotherian mammals found in sub-Saharan Africa. They are most closely related to the tenrecs of Madagascar.
Behavior and habitat.
Ruwenzori otter shrews live in the rivers and streams of various biomes, mostly in forests. They also live at various altitudes, ranging from