Wild boars typically live in groups of 2 to 5 closely related individuals along with their offspring. Young adult boars usually leave the group when they reach 7 to 8 months old. These groups have a strong social structure, where older and heavier boars hold a higher rank. While there is little aggression within the groups, boars do not tolerate animals from outside their established group.

Wild boars inhabit wooded areas, with home ranges that vary from 100 hectares to 2,500 hectares based on food availability. They spend 6 to 7 hours each day foraging. Using their characteristic snouts, they root around in the soil to find roots, insects, and worms.

Wild boars groom their skin and fur by rubbing against tree trunks and shrubs. They also enjoy mud baths to care for their skin. A mud bath cools them down in hot weather and helps get rid of lice and mites. The mud crust that forms on their skin after bathing acts as a barrier against flies.

At night, the animals look for higher, densely wooded areas to sleep in a communal nest. They value cleanliness and defecate in a separate spot 5 to 15 meters away from their resting place.

Wild boars have a specific mating season. From November to January, male boars gather with groups of sows. Before mating, a boar nudges a sow's flank with its snout. If the sow stays still during this nudging, it signals that she is also ready to mate, and the boar may mount her.

From February to April, pregnant female wild boars build nests for giving birth. These nests are large hollows several inches deep, with bottoms lined with plant materials like grass, leaves, and moss. The nests are covered with twigs that are glued together using saliva and mud.

Wild boars typically have an average of 6 to 7 piglets, which are born in April or May. After about three weeks, the piglets start digging in the ground and foraging for food. They continue to nurse from their mother for around two months. Wild boars reach full maturity by their second year and can live up to 10 years.