Concept of Race and Racism

Defining Race: Historical and Modern Perspectives

The concept of race in anthropology has evolved significantly from its 19th-century typological origins to its current status as a largely contested biological category. Mid-20th century definitions approached race from an evolutionary and population-genetic standpoint, recognising breeding populations as dynamic and not watertight compartments.

Key Definitions

• Hooton (1946):: A group whose members present individually identical combinations of specific physical characters that they owe to their common descent.
• Dobzhansky (1944):: Races are populations differing in the incidence of certain genes, but actually exchanging or potentially able to exchange genes across whatever boundaries separate them. Race differences are objectively ascertainable facts; the number of races we choose to recognise is a matter of convenience.
• Boyd (1950):: A population which differs significantly from other human populations in regard to the frequency of one or more of the genes it possesses. It is an arbitrary matter which depends on which gene loci are chosen as the significant constellation.

These definitions share four underlying ingredients. Race is conceived as a group of populations (higher in hierarchy than a single population) showing genetic differences from other such groups, reproductively isolated to a degree sufficient to maintain those differences, and understood as a biological rather than cultural or national category.

Formation of Races: Causes of Variation

Race formation is a complex process involving multiple interacting forces:

• Mutation:: The basic mechanism introducing new genetic variability. A new mutant gene multiplies through generations and becomes a distinctive characteristic of a population, provided conditions are favourable.
• Natural selection:: Moulds genotypes to produce phenotypes fitting the environment. Advantageous genes are multiplied more rapidly; disadvantageous ones are eliminated. Selection acts through phenotypes and gametes, not directly on genotypes.
• Genetic drift:: Chance fluctuations in gene frequencies between completely isolated sub-populations, strongest in small breeding populations. The different frequency of the PTC-tasting gene across populations is a classic example of accidental gene fluctuation.
• Migration:: Plays an important role in racial differentiation through isolation, hybridisation, and the mixing of different populations. Groups migrating from a common centre become isolated and, through endogamy and selection, diverge into new racial strains.
• Hybridisation:: The introduction of genes from one population into another, producing entirely new genetic combinations. Gene flow resulting from hybridisation leads to the formation of new racial populations.
• Isolation:: Geographical or social isolation is considered a great race-maker. Natural selection and genetic drift act effectively only in isolated populations. Increasing isolation reduces intermarriage, allowing new gene pools to stabilise across generations.
• Sexual selection:: Mate selection based on preferred qualities causes the sexually preferred type to become dominant. For example, if blue eye colour is preferred, brown-eyed individuals find fewer mates, and the brown-eye gene may eventually be eliminated or partitioned into distinct subgroups.
• Social selection:: Breeding regulated by artificially instituted social barriers caste, class, religion so that mating occurs between socially approved individuals rather than randomly. Strong isolating mechanisms develop that in time produce modifications in the population.

Racial traits are influenced by four broad factors: climate, nutrition, culture, and genetics.

Major Races of the World

The majority of anthropologists divide humanity into four primary racial groups: Caucasoid, Negroid, Mongoloid, and Australoid. However, no clear-cut demarcating line exists every race has overlapping traits with others, and intermediate types are common.

Caucasoid

Inhabitants of Europe, white Americans, white Australians and New Zealanders, West Asia, South Asia, and parts of Central Asia. Medium to tall stature; skin colour varies from light reddish-white to olive brown; head hair from light blond to dark brown, fine to medium in texture, straight to wavy; moderate to profuse body hair; head form from broad (brachycephalic) to long (dolichocephalic); narrow to medium-broad face; no forward jaw projection (prognathism absent); leptorrhine to mesorrhine nose with a high nasal bridge; thin to medium lips; eyes in lighter shades from light blue to dark brown. Relatively high incidence of the A blood group and highest frequency of Rh-negative.

Negroid

Divided into African Negroid and Oceanic Negroid. Inhabitants of Africa, parts of America, New Guinea and neighbouring islands, Andaman Islands, Malay Peninsula, and the Philippines. Height ranges from very short to tall; skin colour dark brown to black; head hair dark brown to black, coarse in texture, curly to frizzly or woolly; slight body hair; head form predominantly dolichocephalic with protruding occiput; medium-broad to narrow face; prognathism often present; platyrrhine nose with low, broad bridge and root; thick and everted lips; eyes dark brown to black.

Mongoloid

Inhabitants of China, Mongolia, Tibet, Siberia, North America, Greenland, Burma, Thailand, Malay Peninsula, Japan, and North-East India. Medium to short stature; skin colour from yellow to yellow-brown, sometimes reddish brown; hair coarse, straight, and dark; sparse body hair; eyes brown to dark brown, oblique with narrow slit-like opening and Mongoloid epicanthic fold; medium-broad to very broad face with high, flat cheekbones; predominantly brachycephalic head; mesorrhine to platyrrhine nose with low to medium bridge; thin lips.

Australoid

Two main sub-groups: Australian Aborigines and pre-Dravidian (Veddoid). Small-statured people (average height 165 cm for Australian Aborigines, 157 cm for Veddoid). Australian Aborigines: skin colour medium to dark chocolate brown; hair curly or wavy, sometimes straight, medium brown to black; head usually dolichocephalic; very platyrrhine nose with markedly depressed nasal root; very large brow ridges; receding forehead; short face with medium to pronounced prognathism; full lips; receding chin. Veddoids of Malay Peninsula: skin colour yellowish to dark brown; black hair with reddish tinge, wavy or curly; head mesocephalic; nose mesorrhine approaching platyrrhine; orthognathous face; medium-thickness lips; somewhat weak chin.

Racial Classifications of Indian Population

The racial classification of Indian people was attempted first by Sir Herbert Risley, whose findings were published in The People of India (1908). Subsequent classifications include Haddon (1925), Guha (1935, 1937), Roy (1934-38), and Sarkar (1958).

Haddon's Classification (1925)

Haddon divided India into three geographical regions the Himalayas, the Northern Plains (Hindustan), and the Southern Plateau (Deccan) and dealt with racial elements in each separately.

In the Deccan: Negrito (suspected among Kadirs), Pre-Dravidian (dolichocephalic, short, platyrrhine, dark brown to black skin; e.g., Bhil, Gond, Oraon, Santal), Dravidian (dolichocephalic, mesorrhine, medium stature; e.g., Tamil, Malayalam, Telugu, Canarese-speaking peoples), Southern Brachycephals (mesocephalic to brachycephalic), and Western Brachycephals (brachycephalic, nearly leptorrhine, light brown, tall; e.g., Nagar Brahmins of Gujarat).

In Hindustan: Indo-Afghan as the predominant type (dolichocephalic, finely cut prominent nose, long face, medium to tall, dark eyes, light brown complexion, black wavy hair; e.g., Jats, Rajputs).

In the Himalayas: Indo-Afghan variants and Mongoloid (dominant in Nepal, Bhutan, Sikkim; most Assam tribes are Mongoloid).

Risley's Classification (1915)

Risley identified seven types (excluding Andamanese Negritos):

• Turko-Iranian:: Broad head, fine to medium prominent nose, tall, fair complexion, plentiful facial hair; distributed in Baluchistan and the Frontier Province; represented by Balochis and Afghans.
• Indo-Aryan:: Long head (markedly distinguishing from Turko-Iranian), long narrow prominent nose, fair complexion, dark eyes, tall, plentiful facial hair; found in Rajputana, Punjab, Kashmir; represented by Jats and Khattris.
• Scythio-Dravidian:: Medium to broad head, medium nose, fair complexion, scanty facial and body hair, medium stature; result of intermixture of Scythians and Dravidians; distributed from Gujarat to Coorgs.
• Aryo-Dravidian (Hindustan Type):: Long head with medium tendency, medium but sometimes broad nose, variable skin from light brown to dark, stature 159-166 cm; found in Uttar Pradesh and Bihar; result of Aryan (male line) and Dravidian (female line) intermixture.
• Mongolo-Dravidian (Bengali Type):: Broad head tending to medium, medium to broad nose, dark complexion, medium stature; inhabit Bengal and Orissa; e.g., Bengali Brahmins, Bengali Kayastha.
• Mongoloid:: Generally broad head, wide variation in nose, short or below-medium stature, broad Mongolian face with oblique epicanthic eyes, dark skin with yellowish tinge, scanty facial and body hair; found in Assam, Nepal, and Burma.
• Dravidian:: Short stature, long head, very broad and sometimes depressed nose, very dark skin and eyes, dark plentiful occasionally-curly hair; found from Ceylon to the Ganges covering South-Eastern India; Paniyans of South India and Santals of Chota Nagpur; considered by Risley to be the true aborigines of India.

Guha's Classification (1935, 1937)

B.S. Guha identified six racial elements in the Indian population:

• Negrito:: Considered the first comers and true autochthones. Very short (pygmy) stature; round, medium or long head; straight, flat and broad nose; dark brown to dark skin; woolly hair; bulbous forehead; smooth supraorbital ridges. Represented by Kadars, Pulayans, Irulas, and primitive tribes of Wayanad. Closer to Melanesian Pygmies than to Andamanese in head form and hair structure.
• Proto-Australoid:: Dolichocephalic head; markedly platyrrhine nose depressed at root; short stature; dark brown skin; wavy or curly hair; delicate limbs; slightly retreating forehead; often prominent supraorbital ridges. Closely akin to Australian tribes. Distinguished from Negritos by wavy rather than frizzly or woolly hair. Found among Pulayan women, Urali, Baiga, and tribes such as Male Chenchu, Kannikar, Kondh, Bhil, Santal, Oraon.
• Mongoloid:: Scanty body and facial hair; oblique epicanthic eyes; flat face with prominent cheekbones; straight hair. Entered India through north-eastern routes in successive waves. Subdivided into Palaeo-Mongoloid (long-headed and broad-headed subtypes) and Tibeto-Mongoloid. Long-headed Palaeo-Mongoloid found in sub-Himalayan Assam and Burma Frontier tribes (e.g., Sema Nagas, Limbus); broad-headed Palaeo-Mongoloid in Lepchas of Kalimpong and Chittagong hill tribes. Tibeto-Mongoloid: broad and massive head, long or medium nose, tall stature, light brown skin; represented by Tibetans of Bhutan and Sikkim.
• Mediterranean:: Three distinct sub-types:
  • Palaeo-Mediterranean: Long and narrow head with bulbous forehead, projecting occiput, high vault; small and broad nose; medium stature; narrow face; dark skin; scanty facial and body hair. Found in Dravidian-speaking South India; Tamil Brahmins, Nairs of Cochin, Telugu Brahmins. Probably introduced Megalithic culture.
  • Mediterranean: Long head with arched forehead; long face; narrow prominent nose; tall to medium stature; light skin; well-developed chin; dark wavy hair; plentiful facial and body hair. Found in Uttar Pradesh, Bombay, Bengal, Malabar; Namboodiri Brahmins, Allahabad Brahmins. Likely responsible for the Indus Valley Civilisation.
  • Oriental: Closely resembles Mediterranean but with a long and convex nose. Found in Punjab, Sind, Rajputana; Punjabi Khattris and Pathans.
• Western Brachycephals:: Three sub-types:
  • Alpenoid: Broad head with rounded occiput, prominent nose, medium stature, round face, light skin, abundant body hair, thickset body. Found among Bania of Gujarat, Kathi of Kathiawar, Kayastha of Bengal.
  • Dinaric: Broad head with rounded occiput and high vault, very long often convex nose, tall, long face, receding forehead, darker skin. Found in Bengal, Orissa, Coorgs; Brahmins of Bengal, Kanarese Brahmins. Entered India through Baluchistan and Maharashtra.
  • Armenoid: Resembles Dinaric but with more marked occiput shape and more prominent, narrow, aquiline nose. Parsis of Bombay are the typical Armenoid representatives.
• Nordic:: Long head with protruding occiput and arched forehead; tall, long face, strong jaw, powerfully built; fine narrow straight nose; fair complexion; sometimes bluish eyes. Found sporadically in Northern India, especially Punjab and Rajputana; Kho of Chitral, Red Kaffirs, Khatash. Came from Southeast Russia and Southwest Siberia through Central Asia.

Sarkar's Classification (1958)

S.S. Sarkar identified six ethnic elements in the Indian population. He held that the Australoid element forms the earliest substratum across all castes of India, with greatest concentration among the lower castes. His six elements are: Australoids (short, dark, dolichocephalic, platyrrhine, wavy hair; once widely distributed throughout India), Indo-Aryan (tall, lighter skin and eyes, long massive head, high cranial capacity, robust physique; mainly in Indus and Gangetic valleys), Irano-Scythian (medium stature, mesocephalic, more variable than Indo-Aryan; entered from north-west; moved southward along the Indus into Gujarat, Bombay, Maharashtra), Mundari-speakers (stocky, thickset, short stature, long head, slightly lighter than Australoid, straight lank hair resembling Mongolians; confined to eastern central India Chota Nagpur, Orissa hills, Madhya Pradesh), Far Eastern/Malay-Polynesian (darker skin, broad to wavy broad head hair, short stature, tendency to obesity; observed along eastern littoral and Tuticorin coast), and Mongoloid (yellowish skin, scanty facial and body hair, Mongoloid epicanthic eye fold; distributed in north-eastern borders and foothills of Himalayas).

Morphological Criteria of Race

Skin Colour

The most visible racial characteristic. Skin colour is determined primarily by the amount of melanin produced by specialised cells called melanocytes, supplemented by melanoid, carotene, haemoglobin and oxyhaemoglobin, and the optical scattering effect. Melanocytes in the germinative layer of the epidermis produce melanin and distribute it to surrounding cells. Spectrophotometry is used for accurate measurement of reflected skin colour. Genes known to determine skin/hair/eye pigmentation include TYR, TYRP1, OCA2, SLC45A2, SLC24A5, MC1R, ASIP, KITLG, IRF4, SLC24A4, and TPCN2.

Global distribution groups into three broad categories:

• Leucoderms (white-skinned): Europeans, West Asians, Polynesians, North Africans skin from white to light brown.
• Xanthoderms (yellow-skinned): Asiatic Mongoloids, Bushmen, Hottentots, Armenoids exhibiting a yellowish tinge.
• Melanoderms (black-skinned): Negroes and closely related groups characterised by black skin colour.

Hair Colour, Texture and Form

Human populations vary significantly in hair colour and form. Most people have darker hair shades. Blonde and red shades are predominantly found in Western Europe, with Scotland having the highest proportion of red-haired people (about 13%). Red hair is associated with high levels of the reddish pigment pheomelanin and low levels of dark pigment; caused by changes in the MC1R gene on chromosome 16. Hair form is broadly categorised into three major types:

• Leiotrichous (straight):: Includes stretched (thick straight), smooth (thin straight), and flat or slightly wavy. Found in Mongoloids, Amerindians, Eskimos, Polynesians, and Ainus.
• Cymotrichous (wavy to curly):: Broad wavy, narrow wavy, and curly types. Found among people of Western Asia, Sri Lankan Veddas, Australians, Indo-Afghans, Indonesians, Ethiopians, and Europeans generally.
• Ulotrichous (woolly/frizzly):: Frizzly, loose frizzly, thick frizzly, peppercorn, and spiral types. Found among Negroes, Andamanese, Bushmen, Papuans, Melanesians, Sudanese, and Bantus. The Khoisans have the curliest hair, often called peppercorn hair.

Hair colour is determined partly by melanin (thus correlated with skin colour), but the relationship is not perfect some dark-skinned Australian Aborigine populations have a high proportion of blond children, suggesting different alleles govern hair colour in those populations. Hair form may vary in insulating properties between straight and spiralled types, but both warm and cold climate arguments have been made. African and Melanesian populations both have woolly hair but at the microscopic level their hair forms differ, indicating separate genetic origins. Woolly hair has been linked to a mutation in the P2RY5 gene.

Eye Form and Colour

The epicanthic fold a small flap of skin extending from the eyelid to the bridge of the nose is the classic marker of Mongoloid or Oriental populations, though it can appear in individuals from other groups. It has no known biological function. Alice Brues suggests it results from a combination of a fatty eyelid and a low nasal bridge, both potentially adaptive to cold climates. It is more common in women than men in some Native American populations and in children rather than adults in European populations.

Eye colour ranges from light blue to brown-black, determined by pigments on the back and front of the iris. If pigment is only on the back, the eye appears blue. Dark eye colour is dominant in areas of intense sunshine, providing UV protection for the retina. Distribution: Caucasoid (light blue to light brown), Mongoloid (light brown to dark brown), Negroid (dark brown to brown-black).

Lips

Human lips are everted (turned outward), unlike all other animals. Everted lips help cool the body because capillaries run close to the surface and the slight moistness of the lips enables cooling by evaporation. The most everted lips are found on Negroid faces; the least everted on some European faces. Lips are classified as thin, medium, thick, or very thick/everted. African Negroes typically have the last type.

Cephalic Index (Head Form)

Introduced by Swedish anatomist Anders Retzius in the 1840s. The cephalic index (CI) is the width of the skull divided by the length multiplied by 100:

• Dolichocephalic (long-headed): CI below 76 characteristic of Negroid and Caucasoid populations.
• Mesocephalic (medium-headed): CI 76 to 81 found across Mongoloid, Negroid, and Caucasoid populations.
• Brachycephalic (round-headed): CI above 81 characteristic of Mongoloid and some Caucasoid populations.

Franz Boas's early 20th-century study of approximately 18,000 immigrant families showed that head shape changed between parents born in Europe and their children born in the United States, demonstrating that the cephalic index is not fixed it changes with environment thereby undermining the idea that racial types were innately stable.

Nasal Index

The nasal index is nasal breadth divided by nasal length multiplied by 100. P. Paul Broca emphasised the nasal index as the best indicator for ethnic description. Categories:

• Leptorrhine (narrow): associated with Caucasoids and cold-climate adaptation the narrow, elongated nostrils provide a long surface area for warming incoming cold air.
• Mesorrhine (medium): associated with Mongoloids.
• Platyrrhine (broad): associated with Negroids and Australoids broad nostrils permit exit of greater quantities of warm air, providing a cooling effect in hot climates.

Nasal variations are understood as adaptations to climate rather than as fixed racial markers. Nasal proportions vary between ethnic groups but nasal size and shape alone do not precisely define racial categories.

Stature

Stature is influenced by both paratypical (environmental) factors forest and mountain habitation, excessive cold, low nutrition and diatypical (genetic/hereditary) factors. Despite wide intra-population variation, stature has been widely used as a criterion in racial classification. Ranges from very short to very tall.

Genetic Criteria of Race: Blood Groups and Dermatoglyphics

ABO Blood Group Distribution

The O and A alleles are widespread among all human groups globally; B is the rarest allele. Approximately 63% of humans have type O, 21% have the A allele, and 16% have the B allele. Notable distribution patterns:

• Highest frequencies of A: Blackfoot Indians of Montana (30-35%), Australian Aborigines (40-53% in many groups), Saami of Northern Scandinavia (50-90%).
• A allele apparently absent in Central and South American Indians; type O approaches 100% in indigenous populations there.
• Type B: relatively common in Chinese and Indians (around 25%), less common in Europe and European Americans (around 10%).
• Type O high among Celtic-ancestry populations of Western Europe and Australian Aborigines; lowest in Eastern Europe and Central Asia where B is common.

Rh Blood Group Distribution

From the clinical standpoint, the Rh system is the most important blood group system after ABO. Frequency distribution of Rh haplotypes across racial groups:

• Rh haplotype DCe: most common in Caucasians (42%), Native Americans (44%), Asian Mongoloids (70%).
• Rh haplotype Dce: most common in Blacks (44%).
• Rh-negative phenotype: most common in Caucasians (15%), less common in Blacks (8%), rare in Asian Mongoloids (1%). The Basques of the Pyrenees have the highest Rh-negative frequency globally.

Dermatoglyphics

Dermatoglyphic patterns of fingers, palms, and soles are present at birth and remain unchanged throughout life, making them valuable in racial variation studies. The three basic fingerprint patterns are loops, arches, and whorls. Loops predominate in Caucasoid and African populations; Mongoloids have proportionally more whorls than loops. Similarity of patterns between individuals can serve as an index of biological similarity.

Race as a Biological Concept: Is Race Valid?

Biologists define race as a subspecies a population of a species differing geographically, morphologically, or genetically from other populations of the same species. Three fundamental problems complicate applying this definition to humans:

• Arbitrariness:: No scientific criteria exist for how many differences it takes to constitute a race. Different researchers using different traits (skin colour vs. fingerprints) will classify people differently.
• No exclusive possession of traits:: No single race has exclusive possession of any gene variant. The frequency of type O blood, for example, may be high in one population and low in another, but it is present in both. Populations are genetically open genes flow between them. The only reproductive barriers among humans are the cultural rules some societies impose regarding appropriate mates.
• Vast majority of variation exists within so-called racial groups:: R.C. Lewontin's landmark 1970s study of global genetic variation (using blood groups, serum proteins, and red blood cell enzyme variants) found that so-called races account for only about 7-10% of human genetic diversity. As science writer James Shreeve put it, most of what separates one person genetically from a typical African or Inuit also separates that person from another average American of European ancestry.

Clinal Distribution of Traits

The clinal model, which emerged in the 1950s as a large genetic database accumulated, is the first model that did not attempt to compartmentalise human populations into distinct groups. A cline is a gradual, continuous change in the frequency of a trait across geographic space, rather than a sudden and distinct change. The closer the spatial distance between human groups, the greater the likelihood of mating and shared genetically inherited traits.

Key evidence for clinal rather than discrete variation:

• Skin colour varies continuously with latitude and does not assort into distinct geographic groups. Dark skin is an equatorial trait found also in New Guinea far from Africa.
• Blood group distributions are clinal more detailed mapping of type A frequencies, for example, shows a continuous gradient, not discrete boundaries. The distributions of different blood group types (A, B, O) are discordant with each other, meaning no single consistent set of boundaries defines races across multiple traits.
• Variable traits do not predict each other's distribution. One trait cuts across populations one way; another cuts across them differently. Discrete racial groups cannot be defined using combinations of traits.

Genetic Variation Data

Of the 3.1 billion base pairs in the human genome, only about 10 million show any regular variation these are single nucleotide polymorphisms (SNPs). The average difference between any two individuals on earth is about 3 million SNPs less than 0.1% variation. Most of the genome is noncoding; perhaps half of the SNPs with phenotypic effects govern differences between females and males. All the phenotypic variation that has been attributed to race results from a handful of genes that influence visible traits.

Genetic variation within sub-Saharan Africa is greater than that for the entire remainder of the human population combined. The variation in the rest of the world is, for the most part, a subset of sub-Saharan African variation. "African" is not therefore a genetic race, because there is almost no set of African genetic variation not shared by some other populations. When Craig Venter and Francis Collins announced the human genome mapping in 2000, Venter stated that "Race is a social concept and not a scientific one. There are no bright lines to compare all the sequenced genomes on the planet."

Evolutionary Argument against Discrete Races

A noteworthy feature of our species throughout its biological history has been mobility. Humans evolved in Africa and then spread rapidly across the Old World despite mountains, oceans, and other barriers. Gene flow has been the norm humans exchange genes at nearly every opportunity through intermediary populations. This continuous gene flow has prevented any human group from being isolated long enough to evolve the degree of difference required for subspecies status. Moreover, the human major adaptive mechanism is culture, which buffers us against natural selection's tendency to differentiate isolated populations.

Race as a Social Concept

Although biologically separate human races do not exist, race remains a significant cultural category. Human groups frequently insert a false notion of biological difference into the cultural category of race to make it appear more factual and objective. Like gender categories, human races are folk taxonomies culturally defined classifications rather than natural kinds.

Against a backdrop of prejudice, the conflation of the cultural with the biological has historically provided a supposed scientific justification for the exclusion of whole categories of people from certain social roles. The Nazi regime elevated a racialised worldview to state policy the Nuremberg Race Laws of 1935 codified Aryan racial superiority and the inferiority of Jewish and Romani people, providing a biological-sounding justification for political repression and ultimately the deliberate deaths of 11 million people. Hitler's agenda was itself inspired by the American eugenics movement of the early 20th century.

Stephan Palmié asserted that race is not a thing but a social relation. Katya Gibel Mevorach called it "a metonym" a human invention whose criteria for differentiation are neither universal nor fixed but have always been used to manage difference. The "Aryan race" of Nazi ideology was supposed to consist of blond-haired, blue-eyed, white-skinned people, but technically Aryans are any people speaking one of the Indo-European languages Greek, Hindi, Polish, German, Gaelic, English most of whom have neither blond hair nor blue eyes. Jews do not form a race but a religious group, comparable to Buddhists or Protestants. The concept of racial superiority and inferiority has no basis in scientific fact; as Klineberg clearly stated, "the scientists know no relation between race and psychology."

UNESCO Statement on Race

UNESCO organised a conference of eminent anthropologists, sociologists, and psychologists to establish a consensus on the concept of race. The conference recommended:

• Fundamentally, the entire human species has one origin and all people are Homo sapiens.
• National, religious, geographical, cultural, and linguistic groups are entirely unconnected with and unrelated to race. These groups do not indicate any race.
• Physical differences between human populations are due both to heredity and to environment. Differences in heredity arise through mutation and inbreeding.
• Human races, if classified, are classified solely on physical traits and have no relation of any kind to mental or intellectual superiority or inferiority.
• The inner capacity for development of mind and culture is found equally in every race; distinctions between races cannot be based on cultural differences or levels of intelligence.
• The belief that mixing of races is biologically deleterious is essentially incorrect and invalid.

Race, in this framing, is a group of intermarrying individuals born to common ancestors, possessing similar physical traits and a sense of shared identity. Inbreeding stabilises the physical characteristics of a race; geographical isolation is a major cause of inbreeding. Beyond isolation, race originates from the interplay of mutation, migration, selection, and adaptation.

Debunking Race: Key Scientific Contributions

• Franz Boas (early 1900s):: Studied approximately 18,000 immigrant families and showed that the cephalic index differed between parents born in Europe and children born in the United States, demonstrating that so-called racial markers change with environment racial types are not innately stable.
• R.C. Lewontin (1970s):: Demonstrated through blood group, serum protein, and enzyme analysis that races account for only 7-10% of human genetic diversity most variation is within, not between, racial groups.
• Craig Venter and Francis Collins (2000):: Human genome mapping revealed that the types of genetic variation across the human species do not support the notion of genetically defined races.