Overview
The most well-known archaic human, with hundreds of fossils and a fully sequenced genome. Characterized by a robust, cold-adapted body, large brain (often exceeding modern humans), prominent brow ridges, and a projecting midface. Produced sophisticated Mousterian stone tools, used fire, buried their dead (Shanidar Cave, La Ferrassie), cared for injured individuals, and may have created symbolic art. Interbred with H. sapiens — 1-4% of modern non-African DNA is Neanderthal. Multiple lines of evidence suggest complex cognitive and social abilities.
Key Fossils
Neanderthal 1, La Chapelle-aux-Saints, Shanidar 1-9, La Ferrassie, Kebara 2, Altai Neanderthal
Brain Anatomy
Endocast-Based Estimates
| Region | Functional Implications | vs. Modern Human |
|---|---|---|
| Frontal | Large frontal lobes but relatively less prefrontal than sapiens; strong executive function | Similar total volume but different internal organization; less globular |
| Parietal | Large parietal lobes; excellent visuospatial skills for Mousterian tool-making | Less expanded parietal than sapiens; different shape |
| Temporal | Well-developed temporal lobes; social cognition, possible language | Similar volume; less temporal pole expansion |
| Occipital | Larger proportional occipital than sapiens; more visual cortex allocation | Larger proportionally; more visual processing emphasis |
| Cerebellar | Moderate cerebellar development | Slightly smaller proportionally |
Tools & Technology
Associated Tool Traditions
Mousterian
Middle Paleolithic prepared-core technology primarily associated with Neanderthals. Levallois technique produces predetermined flake shapes. Includes points, scrapers, and notched tools.
Chatelperronian
A transitional Upper Paleolithic tradition found in France and Spain, attributed to late Neanderthals. Includes curved-backed knives and some bone tools and ornaments, possibly reflecting Neanderthal acculturation from contact with H. sapiens.
Specific Tool Types
| Tool | Material | Function | Tradition |
|---|---|---|---|
| Levallois point | stone | Spear point, cutting tool | Mousterian |
| Side scraper | stone | Hide and wood processing | Mousterian |
Diet & Food Sources
Top-level carnivore; isotopic evidence shows heavy meat diet; also consumed plants, mushrooms, and medicinal herbs
| Food Source | Type | Evidence | Confidence |
|---|---|---|---|
| Large game meat | Meat hunted | Isotopic | Strong |
| Megalafauna marrow (elephant) | Marrow | Isotopic | Strong |
Fire Use
Widespread evidence of habitual fire use for cooking by Neanderthals
Neanderthal hearths in southwest France.
Well-preserved hearths with layered ash deposits
Late Neanderthal contexts with fire-maintained occupations.
Shelters & Habitation
Bruniquel Cave structures
Neanderthal-constructed ring structures made from approximately 400 broken stalagmites arranged in two rings deep inside a cave. Evidence of fire use on the structures.
Evidence: Two rings of broken stalagmites with fire traces, 336m from cave entrance
Lazaret Cave
A possible internal tent-like structure within a larger cave, with evidence of hide walls supported against the cave wall.
Evidence: Post-holes along cave wall, concentrated occupation debris within defined area
Roc de Marsal
Neanderthal occupation with fire.
Evidence: Hearth features
Mezmaiskaya Cave
Neanderthal infant burial and occupation.
Evidence: Stratified MP layers
Kebara Cave
Neanderthal hearths and well-preserved occupation.
Evidence: Layered hearths; hyoid burial
Abri du Marais
MP/UP transition occupations (illustrative).
Evidence: Sheltered overhang
Social Behavior
Shanidar 1 injury survival Confirmed
Shanidar 1 Neanderthal survived a crushing blow to the left eye (blinding that eye), a withered right arm (likely amputated), and a severe leg injury. Survival required extended care.
Evidence: Healed fractures and deformities on multiple body regions; individual lived to old age
La Chapelle-aux-Saints care Confirmed
The "Old Man" of La Chapelle-aux-Saints suffered severe osteoarthritis and tooth loss but survived to old age, implying group support.
Evidence: Severe degenerative disease; survived to estimated 40+ years (old for Neanderthals)
Neanderthal deliberate burials Confirmed
Multiple Neanderthal sites show evidence of deliberate burial including flexed body positions, grave goods, and possible flower offerings.
Evidence: Flexed positions in pit-like features; La Ferrassie, Shanidar, Kebara, Teshik-Tash
Neanderthal pyrotechnology Confirmed
Habitual fire in many sites.
Evidence: Hearths across MP
Levallois prepared-core provisioning Probable
Prepared cores transported across landscapes (Neanderthal sites).
Evidence: Core preparation and flake predetermination
Art & Symbolic Behavior
Neanderthal shell ornaments Confirmed
Perforated and pigment-stained marine shells used by Neanderthals as personal ornaments, predating contact with H. sapiens.
La Ferrassie burials Confirmed
Multiple Neanderthal burials at La Ferrassie.
Possible Neanderthal cave art Disputed
U-Th dated cave paintings in Spanish caves predating arrival of H. sapiens in Europe (~65 KYA).
Neanderthal manganese processing Probable
Use of black pigments in some MP sites.
Mousterian abstract marks Disputed
Engraved objects from some MP sites (debated).
Social Organization
| Group Size | 10–30 individuals |
|---|---|
| Method | Site area |
| Structure | Fission fusion |
| Sexual Dimorphism | 1.10x (male/female body mass) |
| Task Differentiation | Some evidence but less than H. sapiens (Kuhn & Stiner 2006) |
| Teaching | Standardized Mousterian technology implies teaching |
Relatively small group sizes based on site areas and genetic evidence of low effective population. Kuhn and Stiner argued for less task differentiation than H. sapiens.
Genetics & Ancient DNA
| Genome Coverage | 99.90% |
|---|---|
| DNA Source | Vindija Cave (Croatia), Altai Mountains (Russia) |
| Sequencing Year | 2010 |
| mtDNA Available | Yes |
| Nuclear DNA | Yes |
| Admixture with H. sapiens | 2.5% |
| Divergence Date (fossil calibrated) | 550 KYA |
| Divergence Date (molecular clock) | 0.70 MYA (95% CI: 0.55–0.77; 15 studies) |
| Key Genes/Variants | FOXP2 gene (human variant), MC1R (red hair variant), TAS2R38 (bitter taste), BNC2 (skin pigmentation), several immune-related HLA variants |
First archaic human genome sequenced (Green et al. 2010). High-coverage genome from Altai (Prufer et al. 2014). 1-4% Neanderthal DNA in modern non-Africans.
Molecular clock data from TimeTree 5 (Kumar et al. 2022).
Phylogenetic Relationships
| Related Species | Relationship | Confidence | Notes |
|---|---|---|---|
| Homo heidelbergensis | Proposed ancestor | Strong | European H. heidelbergensis populations gave rise to Neanderthals |
| Homo denisova | Sister taxon | Strong | Genomic evidence shows Neanderthals and Denisovans diverged ~400 KYA from a common ancestor |
| Homo sapiens | Interbreeding partner | Strong | Genomic evidence confirms interbreeding ~50-60 KYA; 1-4% Neanderthal DNA in non-Africans |
| Homo denisova | Interbreeding partner | Strong | Confirmed by "Denny" — a first-generation hybrid found at Denisova Cave |
| Homo sp. Nesher Ramla | Possible ancestor | Moderate | Proposed by Hershkovitz et al. as a source population for Neanderthals |
Archaeological Evidence
Neanderthal-constructed ring structures made from broken stalagmites deep inside a cave.
Middle Palaeolithic assemblages in Arabia.
Perforated and pigment-stained marine shells used as personal ornaments by Neanderthals.
Shanidar 1 survived a crushing blow to the left eye, a withered right arm, and a leg fracture. Survival of these injuries required extended care from others.
Several Neanderthal skeletons at Shanidar appear to have been deliberately buried, with some associated pollen suggesting possible flower offerings (debated).
Neanderthal kin group genetics from dental remains.
Neanderthal remains yielding aDNA for genome sequencing.
Châtelperronian ornaments and bone tools (association debated).
Levallois points and MP hunting toolkit.
Key Specimens
| Specimen | Name | Site | Year | Age (MYA) | Completeness | Significance |
|---|---|---|---|---|---|---|
| Shanidar 4 | Flower burial | Shanidar Cave | 1960 | 0.07 | 55.00% | Famous flower burial evidence (debated) |
| La Ferrassie 1 | — | — | 1909 | 0.07 | 90.00% | Classic western European Neanderthal burial |
| Shanidar 1 | Old Man of Shanidar | Shanidar Cave | 1957 | 0.07 | 70.00% | Neanderthal pathology and care evidence |
| Kebara 2 | Kebara hyoid | — | 1983 | 0.06 | 60.00% | Hyoid bone informs speech anatomy debates |
| La Chapelle-aux-Saints 1 | Old Man of La Chapelle | — | 1908 | 0.05 | 85.00% | Archetypal Neanderthal; severe pathology |
Life History
| Estimated Lifespan | ~45 years |
|---|---|
| Age at Maturity | ~15.0 years |
| Weaning Age | ~3.0 years |
| Interbirth Interval | ~3.5 years |
| Gestation | ~9.0 months |
| Dental Development | Slightly faster than H. sapiens in some histology studies |
| Brain Growth | Large Neanderthal brain; high maternal energetic costs |
| Growth Comparison | Similar overall pace to modern humans (debated) |
| Confidence | Estimated from fossils |
Pathology & Healthcare Evidence
Healed fracture — Shanidar 1 Evidence of care
Affected: Right humerus/clavicle region
Healed crushing fracture with atrophy-related changes; right arm likely impaired.
Care inference: Long-term survival implies provisioning/protection by group.
Survival: Many years post-injury
Arthritis — Shanidar 1 Evidence of care
Affected: Lower limb joints
Degenerative joint disease; reduced mobility in later life.
Care inference: Survival with limited mobility suggests within-group support.
Survival: Years
Traumatic brain injury — Shanidar 1 Evidence of care
Affected: Left orbit/face
Blunt trauma to left side of face; healed with vision loss inferred.
Care inference: Survival after severe head trauma.
Survival: Long-term survival
Arthritis — La Chapelle-aux-Saints 1 Evidence of care
Affected: Spine/hip
Severe DJD; osteoarthritis widespread.
Care inference: Old age survival with severe pathology implies social buffering.
Survival: Years
Degenerative — La Ferrassie 1 Evidence of care
Affected: Skeleton
Widespread degenerative changes; advanced age for Neanderthal.
Care inference: Burial context; survival to old age.
Survival: Years
Unhealed fracture — Shanidar 4
Affected: Rib
Rib lesions interpreted by some as trauma (debated).
Survival: Perimortem vs postmortem debated
Comparative Anatomy
| Encephalization Quotient | 5.10 |
|---|---|
| Intermembral Index | 78.0 |
| Locomotion | Striding biped |
| Foramen Magnum | Anterior |
| Precision Grip | Modern |
| Pelvic Shape | Bowl shaped |
| Robusticity | Robust |
| Big Toe | Fully adducted |
| Thorax | Barrel shaped |
Cold-adapted robust postcrania; large brains (sample ~1200–1750 cc).
DNA Data
Mitochondrial / Genomic Sequences
| Accession | Type | Length (bp) | Organism |
|---|---|---|---|
| KY751400 | Complete mitogenome | 16,572 | Homo neanderthalensis (Vindija 87) |
| FN673705 | Complete mitogenome | 16,570 | Homo neanderthalensis (El Sidron) |
| KC879692 | Complete mitogenome | 16,567 | Homo sp. Altai Neanderthal |
| NC_011137 | Complete mitogenome | 16,565 | Homo sapiens neanderthalensis (Vindija) |
| FM865411 | Complete mitogenome | 16,565 | Homo neanderthalensis (Mezmaiskaya) |
| KX198087 | Complete mitogenome | 16,565 | Homo neanderthalensis (Hohlenstein-Stadel) |
Ancient DNA Samples
| Sample | Site | Date (BP) | Coverage | Haplogroup |
|---|---|---|---|---|
| Mezmaiskaya1 | Mezmaiskaya Cave | 70,000 | 0.50x | — |
| Shanidar_Z | Shanidar Cave | 70,000 | 0.01x | — |
| AltaiNeandertal | Denisova Cave | 52,000 | 52.00x | — |
| ElSidron1253 | El Sidron Cave | 49,000 | 0.30x | — |
| Vindija33.19 | Vindija Cave | 44,000 | 30.00x | — |
| LesCottes_Z4-1514 | Les Cottes | 42,000 | 2.70x | — |
Isotope Analyses
| System | Value | Material | Site | Date (MYA) | Interpretation |
|---|---|---|---|---|---|
| delta N15 | 10.20 | Bone collagen | Qesem Cave | 0.400 | Qesem Cave: late Lower Palaeolithic meat-dominated protein signal (site studies). |
| delta N15 | 10.80 | Bone collagen | Schoningen | 0.300 | European Middle Palaeolithic carnivory signal (site-specific). |
| delta N15 | 10.50 | Bone collagen | — | 0.050 | Neanderthals: high δ15N consistent with high trophic level meat protein. |
| delta N15 | 9.10 | Bone collagen | — | 0.050 | Lower δ15N end of Neanderthal range (ecology/age effects). |
| delta N15 | 11.20 | Bone collagen | Shanidar Cave | 0.045 | Shanidar: elevated δ15N in some individuals (freshwater caveat in some regions). |
Dating Evidence
| Method | Date (MYA) | Uncertainty | Material | Site / Specimen |
|---|---|---|---|---|
| Ar Ar | 1.2000 | ± 0.0500 | Atapuerca section tephras | Atapuerca |
| U series | 0.4300 | ± 0.0200 | Speleothems / flowstone (Sima) | Atapuerca / Cranium 5 |
| U series | 0.3000 | ± 0.0300 | Speleothem / peat (context) | Schoningen |
| Radiocarbon C14 | 0.0500 | ± 0.0050 | Charcoal (Neanderthal layers) | Shanidar Cave / Shanidar 1 |
| Radiocarbon C14 | 0.0500 | ± 0.0100 | Charcoal / bone (molecular age) | Denisova Cave |
| Radiocarbon C14 | 0.0400 | ± 0.0050 | Charcoal (Aurignacian contexts) | Hohle Fels |
Fossil Occurrences
The Paleobiology Database records 6 fossil occurrence(s) attributed to Homo neanderthalensis. View on map →
| Identified As | Location | Formation | Age (MYA) |
|---|---|---|---|
| Homo neanderthalensis | GR | – | 0.77 – 0.01 |
| Homo cf. neanderthalensis | FR | – | 0.77 – 0.13 |
| Homo neanderthalensis | GR | – | 0.13 – 0.01 |
| Homo neanderthalensis | GR | – | 0.13 – 0.01 |
| Homo neanderthalensis | PT | – | 0.13 – 0.01 |
| Homo neanderthalensis | FR | – | 0.13 – 0.01 |
Data from the Paleobiology Database (CC-BY).
Scientific References
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