With four tusks and large shovel-shaped heads, warthogs look fierce, but they often avoid fighting predators such as lions, cheetahs, leopards, wild dogs, or hyenas by running away or dodging into a burrow. Warthogs can run as fast as 30 miles (48 kilometers) an hour, often outdistancing a pursuer.
When cornered by predators, warthogs will attack with their sharp lower tusks, which can measure 6 inches (15 centimeters) long. Older warthogs have long curved upper tusks that can grow as long as 2 feet (61 centimeters). Warthogs are generally peaceful, but sometimes a male may attack another male during mating season.