The bearded pig consumes a wide array of food types, including the fruits, seeds and roots of oak, chestnut and dipterocarp trees, earthworms, small vertebrates, turtle eggs and carrion (4). On one occasion, a bearded pig was observed feasting on a freshly killed Borneo blood python (Python curtus) (2). The bearded pig often follows troupes of monkeys, taking advantage of the discarded fruit that is thrown to the ground, and in turn is followed by pheasants, which forage on the ground disturbed by the pigs (2) (4).
The bearded pig is the only pig species to undertake an annual migration. The motive for this yearly movement is not yet understood, but is believed to be associated with the search for food (4), such as the fruits of the camphor tree (Dryobalanops aromatica) (1) (4).
The bearded pig lives in large matriarchal herds containing up to 200 individuals (1). Adult males only join the herd to mate. Mating coincides with the flowering and fruiting of forest trees (9). Falling petals may even act as a visual stimulus for mating, signalling the availability of essential nutrition to sustain the energy required for pregnancy and lactation (1).
Following a gestation period of 90 to 120 days, female bearded pigs leave the herd to give birth in large nests constructed from twigs and vegetation (1). The average litter contains 7 or 8 piglets, but may be between 4 and 11 (1). The piglets are born with a stripy coat which serves as camouflage from predators, such as river crocodiles and clouded leopards (2). The offspring remain with their mother for up to a year before reaching sexual maturity between 10 to 20 months (1).