Hippopotamuses are large, round mammals native to sub-Saharan Africa. The name comes from the ancient Greek word “river horse or water horse.” After the elephant and rhinos, they are classified as the third-largest type of land mammal by the African Wildlife Foundation.

Despite their physical similarity to pigs and other terrestrial even-toed ungulates, the closest living relatives of the Hippopotamus are cetaceans (whales, dolphins, porpoises, etc.,) from which they diverged about 55 million years ago.

Hippopotamus Species

There are two hippo species in the world; the common hippo and the pygmy hippo. The common hippopotamus (Hippopotamus amphibius), or Nile hippopotamus, inhabits freshwater marshes and rivers in Africa south of the Sahara. While often considered semi-aquatic, they spend much time grazing on land. At night, they remain submerged for up to 16 hours per day to keep their skin moist and avoid heat stress.

The African pygmy hippopotamus (Choeropsis liberiensis or Hexaprotodon liberiensis) is a much smaller hippopotamus restricted to coastal West Africa. Pygmy hippos are solitary and aren’t much territorial, unlike other hippos.

This blog post will explore some of these characteristics and learn more about these amazing animals. Stay tuned for more!

how long can an adult hippo approximately hold its breath under water?

Hippopotamus Appearance

The hippopotamus is a large, round mammal with short legs and an enormous mouth. Adults weigh between 1,500 and 2,000 pounds and can grow up to 15 feet long. They are gray or dark gray, with pinkish skin around their eyes and mouths. They have wrinkled and thick skin and reddish-brown hair on their body. Hippo teeth grow up to 20 inches in length and are used for crushing and grinding any food.

Hippopotamuses are barrel-shaped mammals that are native to Africa. They are semi-aquatic animals, spending much of their time in rivers, lakes, and swamps. Hippos are one of the largest land mammals, with adults reaching weights of up to 3,200 kg. Male hippopotamuses are typically larger than female hippos.

The skin of a hippopotamus is very thick and tough, but it is also very sensitive to sunlight. To protect their skin from the harsh African sun, hippos secrete a pinkish fluid that acts as a natural sunscreen. This substance is also thought to have antibacterial and anti-inflammatory properties, which may help to protect animals from infection.

how long can hippos stay under water

Hippopotamus Distribution and Habitat

Hippopotamuses are found in sub-Saharan Africa, specifically in Angola, Benin, Botswana, Burkina Faso, Cameroon, the Central African Republic, Chad, the Democratic Republic of Congo, Djibouti, Equatorial Guinea, Ethiopia, Gabon, Ghana, Guinea-Bissau, Ivory Coast (Cote d’Ivoire), Kenya, Liberia, Mali, Mauritania, Mozambique, Namibia, Niger, Nigeria, Rwanda, Senegal, Sierra Leone, South Africa, South Sudan, Sudan, Tanzania, Togo Uganda, and Zambia. They are also found in Egypt (sometimes called the ” Nile Hippopotamus “), Gambia, Guinea, and Somalia.

Most of the world’s hippopotamuses live in Africa’s rivers, swamps, and lakes.

how long can a hippo stay under water

Hippopotamus Diet

Hippopotamuses are herbivores, which means that they primarily eat plants. While most of their diet comprises grass, they also consume other vegetation, including fruits, leaves, and stems.

During the dry season, hippos have been known to eat carrion (dead animals) when food is scarce. They have also been known to eat people.

While hippos mainly eat plants, they are not considered grazers like cows or sheep. Instead, they are classified as browsers, meaning they eat a wide variety of plant species. They spend most of the day in the water and only come out on land to graze at night.

Hippopotamus Behavior and Lifestyle

Hippopotamuses are very social creatures. They live in herds of up to 30 individuals, and each herd has a strict social hierarchy. The most dominant male is the leader of the herd, and he controls access to food and mating opportunities. The other herd members follow his lead and defer to his authority. They are also known for their loud vocalizations, which can travel long distances through the air.

Most of the time, hippos spend their days wallowing in rivers and lakes. They are good swimmers and can hold their breath underwater for up to six minutes. When they come up for air, they often open their mouths wide to let out a loud belch or yawn.

Hippopotamuses are also very territorial. They will defend their territories against intruders, and they will be highly aggressive if any animal comes too close to their young hippo.

how long can hippo's stay underwater

Hippopotamus Reproduction and Life Cycles

Hippopotamuses reach sexual maturity between the ages of 5 and 10 years old. The mating season occurs between January and March, with a peak period in February. Oestrus lasts for an average of 25 days, during which time the female hippo will mate with multiple males.

After a gestation period of around 240 days, the female hippo will give birth to only one calf, which weighs between 40 and 60 kg at birth. The mother and calf remain together for around six months, after which the hippo calf begins to venture out independently.

how long can hippos breathe underwater

Hippopotamuses Life span

The average life span of a hippopotamus is around 40 years in the wild, but they have been known to live for up to 60 years in captivity.

Hippopotamus Predators and Threats

Hippopotamuses are massive animals, and they have few predators, such as cheetahs, lions, hyenas, and crocodiles. However, humans pose the biggest threat to hippos. Humans have hunted hippos for their meat and ivory teeth for centuries. In some parts of Africa, hippo meat is still considered a delicacy. Unfortunately, this has led to the decline of hippo populations in many areas.

Habitat loss is another major threat to hippos. As humans continue to develop land for agriculture and other uses, hippos are losing the wetlands and rivers they need to survive. This is a particularly serious problem in Africa, where most hippos live.

Despite these threats, hippopotamuses are still found in large numbers in many parts of Africa. However, their populations are decreasing and considered vulnerable to extinction.

Conservation Status

Hippos are currently listed as vulnerable to extinction by the IUCN. This means that their populations are declining, and they are at risk of becoming extinct in the wild. If this happens, it will be largely due to human activities.

Although they are protected by law in many countries, these laws are often not enforced. As a result, the hippopotamus populations continue to decline.

how long can a hippopotamus hold its breath

Hippopotamus Relationship with Humans

Hippopotamuses have a complicated relationship with humans. On the one hand, humans have hunted and killed hippos for centuries. On the other hand, hippos are incredibly valuable to humans as a source of meat and ivory teeth.

Hippopotamuses have a long history of interaction with humans. They are considered to be dangerous animals due to their size and weight. They are known to attack humans without provocation and have been responsible for several hundred deaths per year.

However, hippos are more likely to attack boats than people. This is because they often mistake the sound of an engine for that of another hippo. Hippos also spread diseases such as anthrax, which can be deadly to humans. If you see a hippopotamus in the wild, it is best to stay away from it and give it plenty of space.


The hippopotamus is a keystone species that greatly impacts its ecosystem. As a herbivore, it plays an important role in controlling the population of aquatic plants. Hippos also help maintain water quality by stirring up sediment from the bottom of rivers and ponds. This helps keep the water clean and provides a vital food source for fish.

Hippos have been hunted for their meat and ivory tusks, and their skins have been used to make leather. In some cultures, the hippopotamus is considered to be a sacred animal. Hippopotamuses are popular animals in zoos and safari parks, often one of the main attractions.

Hope you enjoyed reading about these amazing creatures! Have anything to share? Please leave your comment in the comment section below!

Cody Mitchell
Cody Mitchell is a pet lover and a passionate pet writer. He has worked as a professional writer for over 6 years, with a focus on creating compelling content for pet-related brands. His work has been featured in major publications. When he's not writing, Cody can be found playing with his two dogs (a labradoodle and a cocker spaniel) or cuddling his cat.

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