Hippopotamus

The common hippopotamus (Hippopotamus amphibius), or hippo, is a large, mostly herbivorous, semiquatic mammal native to sub- Saharan African, and one of only two extant species in the family Hippopotimidae, the other being the pygym hippopotamus (Choeropsis liberiensis or Hexaprotodon liberiensis).
Common hippos are recognisable by their barrel-shaped torsos, wide-opening mouths revealing large canine tusks, nearly hairless bodies, columnar legs and large size; adults average 1,500 kg (3,310 lb) and 1,300 kg (2,870 lb) for males and females respectively, making them the largest species of land mammal after the three species of elephant and the white and Indian rhinocerus. Despite its stocky shape and short legs, it is capable of running 30 km/h (19 mph) over short distances.
The common hippopotamus inhabits rivers, lakes and mangrove swamps, where territorial bulls preside over a stretch of river and groups of five to thirty females and young. During the day, they remain cool by staying in the water or mud; reproduction and childbirth both occur in water. They emerge at dusk to graze on grasses. While hippopotamuses rest near each other in the water, grazing is a solitary activity and hippos are not teritorrial on land. The hippopotamus is among the most dangerous animals in the world as it is highly aggressive and unpredictable. They are threatened by habitat loss and poaching for their meat and ivory canine teeth.

 Common hippopotamus

A hippopotamus in Tanzania
Conservation status
Vulnerable (IUCN 3.1)[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Artiodactyla
Family:	Hippopotamidae
Genus:	Hippopotamus
Species:	H. amphibius
Binomial name
Hippopotamus amphibius Linnaeus, 1758[2]
Range map of the African hippopotamus. Historic range is in red while current range is in green.