Wild boar (Sus scrofa) is a large, adaptable ungulate belonging to the family Suidae. It inhabits a broad swath of Eurasia, from the Mediterranean basin through Siberia to the islands of Japan, and has been introduced to the Americas, Australia, and parts of Africa. The species thrives in diverse habitats, including temperate forests, Mediterranean scrub, grasslands, wetlands, and agricultural mosaics, often favoring areas with dense understory for cover. Adults possess a robust body, coarse bristly hair, and a distinctive dorsal ridge of stiff guard hairs. Males develop prominent tusks that can exceed 15 cm and are used for digging and combat. Their keen sense of smell and hearing compensate for relatively poor eyesight. Wild boar are listed as Least Concern by the IUCN, yet local populations may be threatened by habitat loss, hunting pressure, and disease. Their ecological role as seed dispersers and soil engineers makes them a keystone species in many ecosystems. Throughout history, wild boar have been both prized game and agricultural pests. In many cultures they feature in folklore and cuisine. Their high reproductive capacity and flexible diet enable rapid population rebounds after control measures, complicating management. Conservation efforts focus on balancing hunting quotas, protecting forest corridors, and monitoring disease outbreaks such as African swine fever, which can decimate both wild and domestic suid populations.

Wild boar live in matriarchal sounder groups that typically comprise 5–15 females and their offspring, while adult males are largely solitary or form temporary bachelor groups outside the breeding season. The species is crepuscular to nocturnal, foraging at dusk and dawn to avoid predators and human disturbance. Home ranges vary from 1 km² in dense forest to over 10 km² in open habitats, and individuals mark territories with scent glands on the feet and tusks, as well as by wallowing in mud. Communication relies on a repertoire of vocalizations—grunts, squeals, and sharp barks—paired with body language such as ear posture and tail flicking. Social cohesion is reinforced through mutual grooming and coordinated movement, allowing the sounder to locate food resources and evade threats efficiently.

Wild boar are omnivorous opportunists, consuming a diet that reflects seasonal availability. In spring they favor tender shoots, buds, and herbaceous plants, while summer sees increased intake of roots, tubers, acorns, and beechnuts. Autumn diets shift toward high‑energy mast such as oak acorns and chestnuts, providing fat reserves for winter. Animal matter—earthworms, insects, amphibians, carrion, and occasionally small mammals—supplements plant material, especially when protein is scarce. An adult boar can ingest up to 7 kg of food per day, spending 6–8 hours foraging. Feeding strategies include rooting with the snout to uncover underground tubers, wallowing to soften soil, and using tusks to break hard shells. Their flexible diet enables survival in agricultural fields, where they may damage crops like corn, wheat, and soybeans, leading to human‑wildlife conflict.

Females reach sexual maturity at 12–18 months, while males mature at 24–30 months. The breeding season peaks in late autumn (October–December) in temperate zones, driven by increasing daylight and hormonal cycles. After a gestation period of 115–130 days, sows give birth to litters of 4–6 piglets, though numbers can range from 1 to 12 in abundant conditions. Newborns are born with a fine lanugo coat and open eyes, gaining mobility within hours. The sow forms a tight bond with her litter, nursing for 8–12 weeks while providing protection in dense vegetation. Piglets are weaned at about three months and gradually integrate into the maternal sounder. Males disperse at sexual maturity, seeking solitary territories or joining other bachelor groups to increase mating opportunities.

The IUCN classifies wild boar (Sus scrofa) as Least Concern, reflecting its extensive global distribution and high reproductive rate. Nevertheless, regional populations face significant pressures. Habitat fragmentation from urban expansion and intensive agriculture reduces suitable forest cover, limiting shelter and breeding sites. Overhunting for meat and sport can cause local declines, especially where illegal poaching is unchecked. Disease outbreaks, notably African swine fever (ASF) and classical swine fever, have decimated both wild and domestic suid numbers, prompting culling programs that sometimes disrupt ecosystem balance. Climate change alters mast production cycles, affecting food availability. Conservation strategies emphasize sustainable hunting quotas, habitat connectivity through wildlife corridors, and rigorous disease surveillance. Current estimates suggest a global population exceeding 10 million individuals, though precise numbers vary widely across continents.

• Wild boar are the ancestors of all domestic pigs, and interbreeding still occurs in the wild.
• Their tusks grow continuously and can be used to dig up to 30 cm deep in soil.
• In some European forests, wild boar populations have increased by over 200% in the past three decades.
• They can run up to 48 km/h, making them one of the fastest ungulates.
• African swine fever, first identified in Kenya in 1921, has spread to Europe and Asia, causing massive die‑offs in wild boar.