Historically the river hippopotamus ranged through Africa south of the Sahara, however most populations
have been reduced or exterminated. Most hippos are in the Nile river valley of east Africa.
Swamps or grasslands that surround deep rivers and lakes.
- Hippos have a head-body length up to 12 feet (4.3 m) long.
- Females weigh about 2,800 pounds (1260 kg), males are larger weighing 3,200-6,400 pounds (1,440-2,800 kg).
- Hippos have gray to slate brown skin that is up to two inches thick. There are patches of pink on the face and stomach.
- They have a plump, bulky body with stubby legs and feet with webbed toes.
- They have a wide head with eyes, nostrils and ears set on top.
What Does It Eat?
In the wild: Grasses
At the zoo: Grass, hay, grain, plus vitamin and mineral supplements
What Eats It?
Crocodiles, lions, hyenas, and leopards prey on young hippos.
River hippos live in mixed groups of up to 15 animals. During periods of drought, larger groups form around available water sources. Adult males establish and defend narrow territories consisting of a stretch of water and the adjacent land. Males are aggressive in defending their territory and the females in their harem. Hippos use their long canine teeth as weapons, and death often results from fighting between males. Most adult male hides are covered with scars from such fighting. Although hippos are gregarious, they do not appear to form strong social bonds except for females and their calves.
Females are sexually mature at four to 10 years of age and males at seven to 12 years of age. After a gestation of eight months, females give birth to a single calf in the water. Infants even suckle under water. They nurse for six to eight months, but start eating grass at about three weeks. Calves remain with their mothers up to eight years until they are full grown. Hippos live 30-40 years in the wild and up to 50 years in captivity.