AnimaliaHighest rank in taxonomy. Groups all life into domains: Animalia, Plantae, Fungi, etc.IUCN VUInternational Union for Conservation of Nature — the world authority on species extinction risk, using standardized criteria. — Vulnerable — at high risk of extinction if the current adverse conditions continue.In ProgressCurrent stage of this record in the editorial review workflow. Recent Sighting
Tayassu pecari
White-lipped Peccary
(Link, 1795)
Detailed Texts Multi-lang
The white-lipped peccary (Tayassu pecari) is the largest and most social of the three living peccaries, belonging to the family Tayassuidae. It has a robust, compact body covered in thick, dark fur — black to dark brown — with a characteristic white or cream patch around the snout and chin that gives it its common English name. It has a large, active dorsal scent gland, sharp upper and lower canine tusks that clash together when the mouth opens producing an audible click, and slender legs with hooves adapted for varied terrain. Unlike domestic pigs, peccaries have a complex, partially ruminant stomach. It is a keystone species of Neotropical ecosystems, whose presence or absence is a direct indicator of forest conservation status. Its range extends from southern Mexico to northern Argentina and Uruguay.
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TaxonomyBiological classification ranks placing this species within the tree of life, from Kingdom down to Genus.
PhylumRank below Kingdom. Groups organisms sharing a fundamental body plan (e.g., Chordata = vertebrates and some invertebrates).Chordata
ClassRank below Phylum. Subdivides by structural traits (e.g., Mammalia, Aves, Reptilia, Insecta).Mammalia
OrderRank below Class. Groups related families sharing common ancestry (e.g., Carnivora, Primates).Artiodactyla
FamilyRank below Order. Groups closely related genera (e.g., Felidae = cats, Canidae = dogs).Tayassuidae
GenusRank just above Species. The first word in the two-part binomial scientific name.Tayassu
Taxonomic AuthorityThe scientist who first formally described and published this species, followed by the year of publication.(Link, 1795)
Record Completeness
95%Coming soon
Ecology & StatusHow this species lives: habitat preferences, diet, behavior, population status, and role in its ecosystem.
OriginWhether the species is native (evolved here), endemic (found only here), or introduced by human activity.
Native
Population TrendDirection of change in population size over time: increasing, stable, decreasing, or unknown.
Decreasing
Breeding SeasonTime of year when this species typically reproduces or flowers.
Year Round
Trophic RolePosition in the food chain: producer, herbivore, carnivore, omnivore, decomposer, or parasite.
Herbivore
Recent SightingsWhether this species has been observed in the wild in Costa Rica within recent years.
Yes
Habitat SummaryOverview of the specific ecosystems and environments where this species is found in Costa Rica. Multi-lang
It inhabits a wide variety of tropical forest ecosystems, from lowland rainforests to premontane forests and seasonal dry forests. It shows preference for continuous mature forests with high fruit availability and permanent water, but also occupies advanced secondary forests, riverbanks, wetlands, and gallery forests. It requires large areas of continuous territory — its home range can exceed 200 km² — making it one of the species most vulnerable to landscape fragmentation across Tropical America. In Costa Rica it is primarily recorded in the large forest blocks of the South Pacific (Osa, Corcovado), the Northern Zone, and the Caribbean foothills.BehaviourDaily activity patterns, movement, territory use, foraging style, and seasonal behavioral changes. Multi-lang
The white-lipped peccary is fundamentally diurnal, with peak activity in the early morning and at dusk, although in areas with high hunting pressure it may become partially crepuscular or nocturnal. It lives in herds of 50 to 300 individuals with complex social structure based on kinship relationships and dominance hierarchies. Herds travel daily between 3 and 12 km following memorized routes toward food and water sources. When they locate a tree with mass fruiting, the entire herd may congregate beneath it for days. Their presence physically modifies the forest: soil rooting, hoof tracks, and wallowing holes are reliable indicators of their recent activity.Social ActivitySocial structure: whether the species is solitary, paired, or colonial; hierarchy and communication. Multi-lang
The white-lipped peccary has the most complex social organization of all Neotropical ungulates. It lives in herds of 50 to 300 individuals with internal structure based on kinship subgroups. There is a dominance hierarchy with adult males and females as central individuals. Group cohesion is maintained through continuous olfactory contact — individuals mutually rub each other's dorsal gland as a social greeting — and constant low-level vocalizations during movement. Movement decisions are apparently collective and not imposed by a single leader. In threatening situations, the group adopts a circular defensive formation with the youngest individuals at the center. Outside the herd, solitary individuals are extremely rare and generally correspond to sick or severely injured animals.Feeding GuildWhat the species eats, how it forages or hunts, and its role as a consumer in the food web. Multi-lang
Omnivore with strong frugivorous-granivorous dominance. It consumes fallen fruits, seeds, roots, tubers, bulbs, fungi, leaves, soil invertebrates (earthworms, larvae, beetles), and occasionally small vertebrates, eggs, and carrion. In forests with palms, palm fruits constitute a dominant fraction of the diet. The rooting behavior — actively removing soil with the snout — allows it to access underground food inaccessible to other mammals of similar size. Its diet varies markedly between dry and rainy seasons, and between different forest types.Trophic Chain DetailsSpecific interactions in local food webs: prey species, predators, competitors, and scavengers. Multi-lang
Omnivorous primary consumer with herbivorous predominance. It ingests fruits, seeds, roots, fungi, soil invertebrates, and occasionally small vertebrates. Through its habit of swallowing large whole seeds and defecating them at considerable distances from the mother tree, it acts as a secondary seed disperser for trees such as Nazarene wood (Peltogyne purpurea) and several palm species. Its main predators are the jaguar (Panthera onca) — practically the only one capable of attacking adult herds — and the puma (Puma concolor), which prefers young or straggling individuals. The anaconda (Eunectes murinus) and spectacled caiman (Caiman crocodilus) are occasional predators in wetland zones. Its local extirpation generates cascade effects on vegetation, herbivory, and the soil structure of the forest.Reproductive BehaviourMating strategies, courtship displays, nesting or spawning behavior, and parental care. Multi-lang
Reproduction can occur year-round, although in areas with marked climatic seasonality, peaks of births are observed at the onset of the rainy season, when food availability is greatest. Courtship includes active chases within the herd and competition among males for access to estrous females. After a gestation of 156–162 days, the female briefly separates from the group to give birth, typically to two young (range 1–4) that can already move within the first hours of life. Young are precocial: born with open eyes, complete fur, and capable of following the herd within 24–48 hours. Lactation lasts 2 to 3 months. Females can reproduce every year if food conditions are favorable. There is no paternal care from the male.Physical Measures
Length (cm)
90.0 - 130.0 cm
Weight (Grams)
25.00 kg - 40.00 kg
Offspring per cycleTypical number of young (live births, eggs, or seeds) produced by one adult in a single reproductive event or breeding season.1 - 4
Sexual DimorphismObservable physical differences between males and females of the same species (e.g., size, coloration, features).No
Lifespan
Sexual MaturityAge at which the individual becomes capable of reproducing for the first time.
11 - 24 Months
Gestation / IncubationDuration from fertilization to birth (mammals) or to hatching (egg-laying species).
156 - 162
Lifespan EstimatedExpected duration of life from birth to natural death under wild conditions.
Males10 - 13 Years
Females10 - 13 Years
Evolutionary AdaptationsInherited traits and behaviors that improve the species' survival and reproduction in its specific environment. Multi-lang
Extreme gregarious behavior: it lives in herds of 50 to 300 individuals that travel, feed, and sleep together. This massive aggregation constitutes an effective antipredator defense — upon detecting a predator, peripheral individuals emit vocal alarms and the group adopts a compact defensive formation where all individuals point their tusks outward — making individual attacks virtually impossible for any predator.
Hypertrophied dorsal gland that produces strong-smelling secretions used to mark territory and maintain group social cohesion through a shared group odor. This gland is so prominent that it was historically confused with the navel by early European naturalists, who mistakenly believed the peccary breathed through it.
Complex three-chambered stomach that enables efficient digestion of fibrous plant material, hard seeds, and roots that other ungulates of its size cannot process, considerably broadening the spectrum of available food resources in tropical forests.
Exceptionally rich vocal and chemical communication capacity for an ungulate: it produces at least eight different types of vocalizations — grunts, tusk clacks, snorts, alarm barks — and combines chemical signals from the dorsal gland with fecal and urinary marks to coordinate the movements of a herd of up to hundreds of individuals in low-visibility terrain.
Main ThreatsDocumented pressures reducing the population: habitat loss, hunting, disease, climate change, and invasive species. Multi-lang
Intensive hunting for bushmeat consumption: it is the most hunted ungulate species in Tropical America, both due to its large size and its gregarious behavior that facilitates the hunting of multiple individuals in a single encounter. Hunting pressure is especially severe in buffer zones of protected areas and in indigenous territories with access to local wild meat markets.
Habitat loss and fragmentation: due to its need for home ranges of up to 200 km² and its dependence on continuous mature forests, the white-lipped peccary is extremely sensitive to deforestation. Landscape fragmentation not only reduces food and water availability, but divides herds — which require large groups for their social and defensive dynamics — into subpopulations too small to be viable in the long term.
Emerging diseases and interspecies transmission: contact with domestic pigs in agricultural frontier zones exposes the white-lipped peccary to exotic pathogens such as classical swine fever and Aujeszky's disease, which can cause mass mortality events in wild herds with no prior immunity, events documented in Brazil, Paraguay, and Panama.
Interesting FactsSurprising or notable facts that highlight what makes this species unique or ecologically important. Multi-lang
A herd of white-lipped peccaries can be heard and smelled before being seen: the rhythmic clashing of their tusks, collective grunts, and the potent musky odor of their dorsal gland create a sensory presence that locals describe as 'the sound of the forest'. This combination of acoustic and olfactory signals can alert other forest animals — and humans — from hundreds of meters away.
The white-lipped peccary is considered an 'ecosystem engineer' due to the physical impact its herds generate on the forest: by rooting the soil with their snouts in search of roots, tubers, and invertebrates, they create bare-soil microhabitats that favor the germination of certain pioneer plants. Their wallowing holes — excavated collectively — become temporary pools used by amphibians, reptiles, and aquatic invertebrates.
The white-lipped peccary is considered an 'umbrella species' for conservation in Central America: protecting the large forest blocks it needs to survive is equivalent to simultaneously preserving the habitat of hundreds of other species. Its disappearance from a forest is frequently the first indicator that hunting pressure has exceeded the regenerative capacity of the local faunal community, a phenomenon known as the 'empty forest syndrome'.
Despite having sharp tusks capable of causing serious injuries, the white-lipped peccary rarely attacks humans spontaneously. However, a herd that feels cornered may react collectively and aggressively. The survival strategy documented in indigenous communities when encountering a herd unexpectedly is to climb the nearest tree, as peccaries do not climb.