Blond (feminine, blonde) is a hair color found in certain mammals characterised by low levels of the dark pigment eumelanin and higher levels of the pale pigment pheomelanin, in common with red hair. From degrees of light brown to pale blond, the various hues of blondness are found in a little less than 1.8% of the world's population.
The resultant visible hue depends on various factors, but always has some sort of yellowish color, going from the very pale blond caused by a patchy, scarce distribution of pigment, to reddish "strawberry" blond colors (strawberry blonde is an uncommon hair color which is also known as ginger) or golden brownish blond colors, the latter with more eumelanin. True blonds have the thinnest strands of hair while the strands of red hair are the thickest. Blond hair can be found in humans and certain breeds of dogs and cats, among other mammalian species.
The word—with one spelling or the other—is also occasionally used to refer to objects that have a color reminiscent of fair hair. Examples include dolls' hair, pale wood, and lager beer.
Based on recent genetic information, it is probable that humans with blond hair became distinctly numerous in Europe about 11,000 to 10,000 years ago during the last Ice Age. Before then, Europeans had dark brown hair and dark eyes, which is predominant in the rest of the world. "Cavegirls were first blondes to have fun", from The Times. Note, the end of the Times article takes a bite of the Disappearing blonde gene hoax; the online version replaced it with a rebuttal.
A long standing question has been why did certain populations in Europe evolve to have such high incidences of blond hair (and wide varieties of eye color) so relatively recently and quickly in the human evolution timescale? If the changes had occurred by the usual processes of evolution (natural selection), they would have taken about 850,000 years. But modern humans, emigrating from Africa, reached Europe only 35,000-40,000 years ago. Canadian anthropologist Peter Frost, under the aegis of University of St Andrews, published a study in March 2006 in the journal Evolution and Human BehaviorAbstract: "European hair and eye color: A case of frequency-dependent sexual selection?" from Evolution and Human Behavior, Volume 27, Issue 2, Pages 85-103 (March 2006) that says blond hair evolved very quickly at the end of the last Ice Age by means of sexual selection. According to the study, north European women evolved blonde hair and blue eyes at the end of the Ice Age to make them stand out from their rivals at a time of fierce competition for scarce males. The study argues that blond hair originated in the European region because of food shortages 10,000-11,000 years ago. Almost the only sustenance in northern Europe came from roaming herds of mammoths, reindeer, bison and horses and finding them required long, arduous hunting trips in which numerous males died, leading to a high ratio of surviving women to men. This hypothesis argues that women with blond hair posed an attractive alternative that helped them mate and thus increased the number of blonds.
Blond hair is common in infants and children, so much so that the term "baby blond" is often used very light-colored hair. Babies may be born with blond hair even among groups where adults rarely have blond hair, such as the Chinese, although such natal hair usually falls out quickly. Blond hair tends to turn darker with age, and many children born blond turn brown or even black before or during their teenage years.
The body hair of blonds is also blond, although terminal hair elsewhere on the body may be darker than hair on the head, and even brown. Vellus, on the other hand, may be very light or even transparent. Hair growing from a mole or birthmark may be dark.
However, it must be noted that those with fair hair sometimes desire darker hair (Winona Ryder, for one, is naturally blonde and dyes her hair black). Different cultures around the world often find one type of hair the most desirable.
Some research suggests that fair hair, being characteristic of young children, evokes parent-like feelings of affection and protection in others. This association with children may also be the cause of the common Western stereotype of blonds as being unintelligent (such as fictional character Chrissy Snow, a stereotypical dumb blonde). Two notable sex icons of twentieth-century America who helped popularize this image were Marilyn Monroe and Jean Harlow. Monroe, who was blonde as a child though her hair darkened, and Harlow, a natural ash blonde, both frequently portrayed "classic" dumb blondes in their films, yet were known privately as intelligent people. Jean Harlow is often credited as being the person who made it acceptable in Western culture for ordinary women to artificially bleach their hair blonde without being perceived as prostitutes.
In the early twentieth century, blond hair was sometimes associated with an Aryan master race, promoted by Nordicists such as Madison Grant and Alfred Rosenberg, although brown and/or dark hair was (and still is) more common in races that supremacists considered 'Aryan'.
Many sub-categories of blonde hair have also been made to describe someone with blonde hair more accurately. Examples include the following: Platinum Blonde (nearly white; only found naturally in children); Towhead (same as platinum blonde); Sandy Blonde (similar to sand in color); Ash Blonde, Dirty Blonde, Dishwater Blonde (these three are much the same, describing a dark blonde shade, though the last two may be considered offensive); Golden Blonde (lighter, with a gold cast); Bottled Blonde (i.e., someone who bleaches their hair); Strawberry Blonde (with a reddish hue); Pool Blonde (greenish hair some people get after habitual use of a chlorinated pool); Hazy Blonde; Zebra Blonde (blonde/brunette with natural blonde/brown streaks in their hair; often occurs when hair is in a design that hides some hair under other hair while out in the sun for long periods of time).
In 2002 there was a worldwide hoax circulating that claimed that scientists predicted blondes were eventually going to become extinct. The hoax cited WHO as the source of the scientific study. (see "Disappearing blonde gene" below).
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