Common Warthog * Vlakvark * Phacochoerus Africanus

A warthog is identifiable by the two pairs of tusks protruding from the mouth and curving upwards. The lower pair, which is far shorter than the upper pair, becomes razor-sharp by rubbing against the upper pair every time the mouth is opened and closed. The tusks are used for combat with other hogs and in defence against predators – the lower set can inflict severe wounds.
By Charles J. Sharp - Own work, from Sharp Photography, sharpphotography.co.uk, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=68551674
Pig Vark
By Charles J. Sharp - Own work, from Sharp Photography, sharpphotography, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=37065293
The common warthog is the only pig species that has adapted to grazing and savanna habitats. Its diet is omnivorous, composed of grasses, roots, berries and other fruits, bark, fungi, insects, eggs and carrion.

The common warthog commonly reverses into burrows, with its head facing the opening and ready to burst out if necessary. Common warthogs will wallow in mud to cope with high temperatures and huddle together to cope with low temperatures.

Warthogs can run speeds of up to 48 km/h (30 mph), will run with their tails sticking up and will enter their dens rear first with tusks facing out.

Common warthogs have also been observed allowing banded mongooses and vervet monkeys to groom them to remove ticks.

Sources:
(*) https://en.wikipedia.org/wiki/Common_warthog
(*) https://www.awf.org/wildlife-conservation/warthog