Quick answer
Key facts about domestic pig — size, diet, habitat, and conservation in one place.
Intelligence
Pigs use mirrors, solve mazes, and play with enrichment toys — cognitive tests rank them among top farm species.
Rooting behaviour
Sensitive snouts root soil for tubers and invertebrates — natural behaviour requires outdoor access for welfare.
Feral pig damage
Escaped pigs cause billions in crop and habitat damage across the US, Australia, and Brazil — prolific breeders with no natural predators in many regions.
Welfare debate
Industrial confinement raises ethical concerns; free-range and straw-bedded systems improve welfare at higher cost.