Hippopotamus

Hippopotamus amphibius

The hippopotamus, usually meaning the common hippopotamus, is a massive semi-aquatic mammal of sub-Saharan Africa. It spends daylight hours in rivers, lakes, and pools, with eyes, ears, and nostrils set high on the head for surface breathing and watching. At night it leaves the water to graze, cropping grasses with broad lips while relying on large canine teeth for fighting rather than feeding. Social groups form around water, where adult males defend territories and females raise calves in close contact with the herd.

Hippos are not practical private animals; they are powerful, territorial, and capable of injuring people even in managed settings. Zoos and sanctuaries require reinforced barriers, deep pools, dry resting areas, reliable water treatment, and protected keeper routines. Diets are based on hay, grass, browse, and formulated herbivore feeds, with attention to body condition and dental wear. Conservation planning deals with wetland loss, illegal hunting for meat and ivory, drought, and conflict where hippos crop farmland or share water access with people and livestock.