Males forage alone, while sows and their recent litter will forage together in family parties. Although they have poor eyesight, warthogs possess a well-developed sense of smell and acute hearing. They are active in the daytime. Highly vocal, family groups communicate with squeaks, grunts and chirrups. The combination of speed, they can charge up to 30 miles per hour, and 2 sets of tusks is enough to fend off most predators.
Males fight with frontal contact using razor sharp tusks.
Warthogs usually take over abandoned aardvark dens, but may also make dens under rocks or in sheltered burrows. Sexual maturity is attained by 18 months, although males may only gain access to sows on reaching full maturity at about 4 years old. Gestation if between 170 - 175 days. The young weighing between 18 and 32 ounces, are born in a grass-lined burrow underground. Piglets remain in the nest about 10 days before venturing out with their mother.