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Hippopotamus

More closely related to the pig than the horse, the name comes from the Greek "hippos" meaning horse and these animals were once called river horses

Hippopotami

Description

Hippos have a barrel shaped body, short legs and a massive head with a broad muzzle. The hide is almost hairless - the mouth has an impressive set of canines and incisors and their 4-toed feet leaves a distinctive track.

The shape of their head is much like that of a frog, and allows them to keep their eyes and nostrils above the surface, while keeping the rest of their body submerged.

The hippo does not have sweat or sebaceous glands. A unique gland that produce a viscous red fluid, has led to the myth that hippos "sweat blood." The hippo relies on water or mud to keep it cool, and it is thought that the red fluid may have a similar function.

Hippopotami

Feeding

Most of the day is spent in water or close to shore on sand or mud banks. Mainly feeding at night they can be seen foraging during the day. They are vegetarian - plucking grass with their wide lips but are also known to eat the fruit and flowers of the sausage tree. They can consume up to 60kg of grass every night.

General

Hippos are amazingly agile for their size - they are good climbers and often negotiate steep banks to graze on grass.

The main vocalizations are a "wheeze-honk" and a roar .

Hippos swim and dive well, and their specific gravity allows them to walk along the bottom. When submerged, they seal off their slit-like nostrils and ears.

Hippopotamuses usually remain submerged for 3-5 minutes, though they can stay
under for up to 30 minutes. Hippos are plentiful in the Zambezi river and often groups of over 60 can be seen in one spot

Breeding

Mating takes place in water. The gestation period varies between 230 and 260 days when a single calf is born. Birthing takes place on land in dense bush where the calf is suckled. Maturity is reached at 4 years.

Hippopotami

Behaviour

The large hippopotamus is an aggressive animal; old scars and fresh, deep wounds are signs of daily fights that are accompanied by much bellowing and snorting.

One of the most aggressive and threatening postures of the hippo is the huge open-mouthed "yawn" revealing its formidable teeth. With the long, razor-sharp incisors and tusk like canines, the hippo is well-armed and dangerous.

They kill more people then any other animal in Africa, mainly at night or early morning when people walk between them and their security of water

Adult males defend narrow territories which consist of water and the adjacent land.

Both sexes are very aggressive - males defending their territory may kill another
hippo nearby when courting females, and females join together to protect their offspring.

In areas where overcrowding is intense, aggression increases. They have a strict territorial system within which bulls are continually fighting for dominance. Their large tusks are used as weapons of attack or defence

Pawprint

Hippo