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What the sources say

Wild BoarSus scrofa

Every figure, record and mechanism on the Wild Boar profile was written from a source, and this is the working table behind it: 56 claims checked word for word against these sources. The left column is what the page says. The right column is the source's own words, copied, not paraphrased; a ... marks a cut and[brackets] an insertion. Open any source and check it yourself.

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Source
01

Animal Diversity Web, University of Michigan

Sus scrofa (wild boar). Animal Diversity Web, University of Michigan.

The page saysA long-snouted omnivore
The source saysTheir long, flattened snouts allow for a heightened sense of smellNote: tagline
The page saysA long-snouted omnivore
The source saysWild boars are omnivorous.Note: tagline
The page saysupper canines are usually visible even when its mouth is closed
The source saysTheir upper canines are usually visible even when their mouth is closed.Note: tagline
The page saysCan live in grassland, woodland, farmland, shrubland and marsh; native to Europe and Asia and introduced on other continents
The source saysThey may inhabit grassy savanna areas, wooded forests, agricultural areas, shrublands and marshy swamplands.Note: stats.habitat
The page saysnative to Europe and Asia and introduced on other continents
The source saysThey originated in Europe and Asia, but were widely introduced to North America and are considered an invasive species in the southeastern United States and California. They are common throughout Eurasia, and inhabit every continent except Antarctica.Note: stats.habitat
The page saysMostly crops, fruit, nuts and roots, plus eggs, carrion, small rodents, insects and worms
The source saysThey predominantly eat plant matter, particularly crops, fruits, nuts (mast), roots, and green plants. They have also been known to consume bird eggs, carrion, small rodents, insects, and worms.Note: stats.diet
The page saysA long, flattened snout that gives it a heightened sense of smell
The source saysTheir long, flattened snouts allow for a heightened sense of smell.Note: stats.superpower
The page saysA wild boar's long, flattened snout gives it a heightened sense of smell, and as it forages it keeps that snout near the ground
The source saysTheir long, flattened snouts allow for a heightened sense of smell. As pigs forage for food, they tend to keep their snout near the ground.
The page saysa boar with its nose down may find it harder to smell danger
The source saysThis can impede their ability to smell, making it harder to smell possible danger.
The page saysBoars are omnivores
The source saysWild boars are omnivorous.
The page saysMost of the menu is plant matter such as crops, fruit, nuts and roots
The source saysThey predominantly eat plant matter, particularly crops, fruits, nuts (mast), roots, and green plants.
The page saysThey have also been known to eat bird eggs, carrion (dead animals), small rodents, insects and worms
The source saysThey have also been known to consume bird eggs, carrion, small rodents, insects, and worms.
The page saysAdult wild boars measure 153 to 240 cm in total length and weigh 66 to 272 kg
The source saysWild boars range from 153 to 240 cm in total length and weigh 66 to 272 kg as adults.
The page saysFemales tend to be smaller than males of the same age
The source saysFemales tend to be smaller than males of the same age
The page saysA boar can stand as tall as 0.9 m at its bulky shoulders
The source saysWild boars can stand as tall as 0.9 m at their bulky shoulders
The page saysIts upper canine teeth typically measure 5 to 10 cm and are usually visible even when the mouth is closed
The source saysTheir upper canine teeth typically measure 5 to 10 cm and are generally larger than their lower canines. Their upper canines are usually visible even when their mouth is closed.
The page saysThe thick, coarse coat runs from black to brownish-red to white
The source saysAdult wild boars have a thick, coarse coat of hair covering their bodies. Their coat ranges in color from black to brownish-red to white.
The page saysIn the wild, hunting pressure greatly affects their mortality
The source saysMortality for both male and female boars in the wild is greatly affected by pressures due to hunting.
The page saysAt birth, piglets generally have yellowish-brown stripes down their backs
The source saysAt birth, young boars generally have yellowish-brown stripes running down their backs that disappear into an even coloration within about 4 months.
The page saysThe stripes let them stay concealed in undergrowth and in their nest
The source saysPiglets have stripes running the length of their back, enabling them to remain concealed within undergrowth and in their nest.
The page saysthey fade into an even color within about 4 months
The source saysdisappear into an even coloration within about 4 months
The page saysWild boars tend to live in groups called sounders
The source saysWild boars tend to live in large groups called sounders
The page saysA sounder is made up of 6 to 20 closely related females, but may hold over 100 animals
The source saysmade up of 6 to 20 closely-related females, but may contain over 100 individuals
The page saysMales leave their mothers at 1 to 2 years old and generally join a sounder only during mating season
The source saysMales stay with their mothers until they are 1 to 2 years old and then leave the herd. After departing, they generally only join a sounder during mating season.
The page saysA sow's gestation period lasts 108 to 120 days, and a litter averages 5 to 6 piglets
The source saysA sow's gestation period lasts 108 to 120 days. Each litter consists of 5 to 6 piglets on average.
The page saysthe mothers keep the young in the middle, with adults in the lead and at the rear
The source saysWhen traveling, mothers keep their young in the middle, with adults in the lead and rear.
The page saysHumans are the main predator
The source saysHumans are the main predator of wild boars.
The page saysYoung boars are targeted by coyotes and bobcats, while juveniles and adults may fall prey to American black bears and cougars
The source saysYoung wild boars are targeted by predatory animals such as coyotes and bobcats, while juveniles and adults may fall prey to larger predators such as American black bears and cougars.
The page saysWild boars originated in Europe and Asia, and they live on every continent except Antarctica
The source saysThey originated in Europe and Asia, but were widely introduced to North America and are considered an invasive species in the southeastern United States and California. They are common throughout Eurasia, and inhabit every continent except Antarctica.
The page saysThey may live in savanna, forest, farmland, shrubland and swamp
The source saysThey may inhabit grassy savanna areas, wooded forests, agricultural areas, shrublands and marshy swamplands.
The page saysThey need a nearby water source and dense vegetation for cover
The source saysThey require a nearby water source and shelter (dense vegetation) to protect and conceal them from predation.
The page saysWild boars can be destructive to farmland and natural ecosystems
The source saysWild boars can be destructive to farmland and natural ecosystems
The page saystags: forest
The source saysThey may inhabit grassy savanna areas, wooded forests, agricultural areas, shrublands and marshy swamplands.Note: #981: forest is one of ADW's biomes for the species; the breadth is carried by the adaptable tag

Source
02

AnAge: The Animal Ageing and Longevity Database, Human Ageing Genomic Resources

AnAge entry for Sus scrofa. AnAge: The Animal Ageing and Longevity Database, Human Ageing Genomic Resources.

The page saysThe longevity record is 27 years, set in captivity
The source saysMaximum longevity 27 years (captivity)
The page saysset in captivity by an individual of the subspecies Sus scrofa riukiuanus
The source saysOne specimen of the riukiuanus subspecies lived for 27 years in captivity

Source
03

USDA Animal and Plant Health Inspection Service

Feral Swine: Impacts on Threatened and Endangered Species. USDA Animal and Plant Health Inspection Service.

The page saysFeral swine, also called wild pigs or boar, use their keen sense of smell and their digging to prey on reptile eggs buried in sand or soil
The source saysFeral swine’s keen sense of smell, along with their digging and rooting abilities, allows them to prey on reptile eggs buried in sand or soil.Note: also-called from: 'Feral swine (also called wild pigs, boar, feral hogs, and many others)'
The page saysIn the United States, feral swine are descended from escaped or released domestic pigs, Eurasian boar and their hybrids
The source saysOver centuries, domestic pigs, Eurasian boar, and their hybrids have escaped, been released, and been reintroduced, setting the scene for the expanded populations we have today.
The page saysThey were introduced in the 1500s
The source saysintroduced into the United States in the 1500s by early explorers and settlers
The page saysin 2020 the USDA put their population at about 6 million
The source saysferal swine populations of approximately 6 million
The page saysin 2020 the USDA
The source saysProgram Aid No. 2195f Revised May 2020
The page saysThey have played a role in the decline of nearly 300 native plants and animals
The source saysFeral swine have played a role in the decline of nearly 300 native plants and animals in the United States
The page saysOn Keewaydin Island in Florida, feral swine nest predation destroyed every nest on the island in some years, which devastated endangered green sea turtle reproduction
The source saysOn Keewaydin Island in Florida, in some years, feral swine nest predation devastated endangered green sea turtle reproduction by destroying every nest on the island.
The page saysIn Texas, feral swine wallowing in seasonal pools kept the endangered Houston toad from breeding successfully by disturbing adults, eating eggs and contaminating water
The source saysFeral swine wallowing in seasonal pools in parts of Texas have prevented the endangered Houston toad from breeding successfully by disturbing adult toads, eating eggs, and contaminating water.

Source
04

New York State Department of Environmental Conservation

Eurasian Boar. New York State Department of Environmental Conservation.

The page saysEurasian boars can breed as early as 6 months of age and can breed several times a year
The source saysIf weather is good and food is plentiful, Eurasian boars can breed as early as 6 months of age. They can breed several times a year
The page saysLitters range from 2 to 8 piglets, and litters as large as 10 to 12 have been reported
The source saystheir litter size can range from 2-8, although litters as large as 10-12 have been reported
The page saysA Eurasian boar population can double in one year
The source saysA Eurasian boar population can double in one year.
The page saysA Eurasian boar population can double in one year
The source saysA Eurasian boar population can double in one year.Note: vibe.reason; same quote as the body claim

Source
05

Sain 2019

Sain (2019). Hogs Gone Wild. National Wildlife, National Wildlife Federation.

The page saysSus scrofa is the same species as the domestic farmyard pig
The source saysSus scrofa is the same species as the domestic farmyard pig
The page saysThe feral hogs running loose in the United States descend from imported Eurasian wild boar, escaped domestic pigs or hybrids of the two
The source saysThe feral hogs running rampant today are descendants of those imported Eurasian wild boar, escaped domestic pigs or hybrids of the two.
The page saysFeral hogs can be sexually mature as early as six months old
The source saysSexually mature as early as six months

Source
06

Scandura et al. 2025

Scandura et al. (2025). Sus scrofa. The IUCN Red List of Threatened Species 2025: e.T41775A215861797.

The page saysLeast Concern
The source saysIUCN Red List category: Least Concern (LC).Note: stats.conservationStatus
The page saysThe IUCN Red List rates the species Least Concern
The source saysIUCN Red List category: Least Concern (LC).

Source
07

Mataković, Beljan & Landekić 2023

Mataković, Beljan & Landekić (2023). Wild Animal Attacks on Humans in Croatia. South-east European forestry.

The page saysdangerLevel: Deadly
The source saysSeveral wild boar attacks that ended fatally show that wild boars are not harmless animalsNote: #981: tiers are capabilities (#631); boar attacks have killed people, though rarely

Source
08

Jezierski 1977

Jezierski (1977). Longevity and mortality rate in a population of wild boar. Acta Theriologica.

The page saysA study that followed 376 marked wild boars in Poland's Kampinos National Park from 1963 to 1973
The source saysDuring the period f r o m 1963—1973 individually marked wild boar ( Sus scroja L i n n a e u s , 1756) were frequently caught in the Kampinos National P a r k near W a r s a w (N=376).Note: #1005: lifetime table corrected for emigration; shot animals excluded from the material
The page saysfound an average life of 21 months for males and 24 months for females
The source saysMaximum (9 years) and average (males 21 months, females 24 months) length of life of wildboar was estimated from lifetime tables.
The page saysand the oldest male reached 9 years
The source saysThe oldest male recorded in the studies presented here had reached the age of 9 years (survived for 100 months).

How the table was made: a writer drafted the profile from these sources and logged each claim with its quote, a reviewer with nothing but this table checked every sentence said no more than its quote, and a script confirmed each quote appears word for word in the source. The method is in the site'sAbout page.