Warthogs (Phacochoerus africanus) are common in various parts of South Africa and are often spotted in both natural habitats and more urbanized areas. Here's a description of a warthog on a road in South Africa:

**Appearance:**
Warthogs are medium-sized members of the pig family and are easily recognizable by their distinct features:

1. **Size:** Adult warthogs typically stand about 60 to 90 centimeters (2 to 3 feet) tall at the shoulder.
2. **Build:** They have a robust build with stocky bodies and relatively short legs.
3. **Color:** The skin of warthogs is sparsely covered in coarse hair, and their coloration can range from brown to gray.
4. **Facial Features:** One of the most prominent features is the pair of upward-curving tusks that protrude from the sides of their snouts. Both males and females have these tusks, and they are used for digging and defense.

**Behavior:**
Warthogs are often observed in open areas, including roads and grasslands. Here's how you might encounter a warthog on a road:

1. **Foraging:** Warthogs are omnivores and feed on a variety of vegetation. They may be spotted on roads as they forage for grass, roots, and other plant material.

2. **Movement:** Warthogs are known to move quickly and can run surprisingly fast despite their seemingly clumsy appearance. They may use roads as pathways to move between different areas.

3. **Social Behavior:** Warthogs are usually found in family groups, known as sounders, consisting of a female and her offspring. Males may be solitary or form small bachelor groups.

4. **Caution:** While foraging, warthogs are often alert to their surroundings and may quickly retreat or run away if they sense danger. Their tusks provide some defense against predators.

**Habitat:**
Warthogs are adaptable and can be found in a variety of habitats, including grasslands, savannas, and open woodlands. They may also venture into more human-dominated areas, such as near roads or around water sources.

Encountering a warthog on a road in South Africa can be a memorable experience, offering a glimpse into the country's diverse wildlife and the coexistence of animals with human landscapes. Always exercise caution and maintain a safe distance when observing wildlife in their natural habitats.