Does anybody know why we have eyebrows?
479559
The function of the eyebrow hair is to prevent debris such as dandruff and other small objects from falling into the eyes, as well as providing sense of something near the eye, and prevent water or sweat from dripping into the eye.
605132
its just genetics, like the size of your nose, or the colour of your eyes.
469123
to compensate for their bigger lips?\nits genetic...
951247
it means you have very low self esteem. try to get couseling and try new ways to make yourself look better. try switching the type of clothes you wear, new makeup,hairstyles, arch your eyebrows, and/or develop social status with others.  try to be more lively.a good personality will definitely change the way people look at you, because looks are'nt everything. its whats inside that can also do the trick!
7648
While I think in the past scientific thought was that the eyebrows shaded the eyes and protected them from sweat, what I see is that they are critical for non-verbal communication.\n\nIn a hunter-gatherer society, men hunting could communicate across distances silently with head and facial gestures.  Eyebrows emphasize and exaggerate the actions of the muscles around the eyes.  Consider Spock's one raised eyebrow or Groucho Marx's leering waggle.
524472
The eyebrow is a bony ridge above the eye that protects the eye and bears a tuft of facial hair in most mammals. The function of the eyebrow hair is to prevent debris such as dandruff and other small objects from falling into the eyes, as well as providing sense of something near the eye, and prevent water or sweat from dripping into the eye.\n\nAn eyelash or simply lash is one of the hairs that grow at the edge of the eyelid. Eyelashes protect the eye from debris and perform some of the same function as whiskers do on a cat or a mouse in the sense that they are sensitive to being touched, thus providing a warning that an object (such as an insect or dust mote) is near the eye (which is then closed reflexively).
6779
Same reason men have more hair on face, chest & back-testosterone and genetic prediliction. However, some women are also plagued with more hair than desireable-in all the wrong places-yes, even Butt Hair.
579384
Cornelia de Lange Syndrome is diagnosed by clinical features. Children with this Syndrome often have long eyelashes, bushy eyebrows and synophrys (joined eyebrows). Their hairline may be lower than other family members, and they may have more body hair. These features are often less obvious in males after puberty. Children are often shorter than others in the family. None of these features may cause a problem for the person concerned; they are just clues for a diagnosis
243055
We have a horny (keratin) protection on our last phalanxes because we're mammals and almost all mammals have (except for whales and some others); it's something we probably inherited from our synapsid ancestors ("mammal-like reptiles"). \nAnd we have fingernails instead of claws or hooves because we're primates. All great apes have fingernails, whereas "lower" primates have claws. \n\nAt least, that's the evolutionary reason. I'm sorry if you were looking for something more philosophical!
303294
Its called a philtrum and I believe its there to help rivet sweat down the face - as eyebrows are there to stop sweat getting into your eyes - from cavemen/women times methinks...
97327
Why do blond women paint there hair Burnett? Artificial Inteligence. :)
708684
as we mature we lose the baby fat in those areas and our skin gets thinner there as our bones finish growing and developing.\nOften the skin on our elbows and knees tends to be a lot dryer which makes the 'parrots beak' seem a lot more prominent
471957
Why is this question under 'Other_Education', please ?!\n...Or is this the only kind of 'education' that 'Jose' is interested in ?!\nMost girls who dye their hair [I do not !] limit themselves to what adorns their head. Most do not even bother to dye their eyebrows in the same shade - and no male seems to even mind the discrepancy !\nWhy then, would girls bother with the rest, eh ?
729660
The hair folicle on our face don't have tiny muscles attached to them.\nOnly the hairs on our arms and legs have tiny muscles that pull on the hair to make bumps apprear on your arms or legs.
839520
Both eyebrow hair and head hair are the same type - terminal, but they have different growth periods.  \n\nFrom wikipedia: Individual hairs alternate periods of growth and dormancy. During the growth portion of the cycle, hair follicles are long and bulbous, and the hair advances outward at about a third of a millimeter per day. After three to six months, body hair growth stops (the pubic and armpit areas having the longest growth period). The follicle shrinks and the root of the hair grows rigid. Following a period of dormancy, another growth cycle starts, and eventually a new hair pushes the old one out of the follicle from beneath. Head hair, by comparison, grows for a long duration and to a great length before being shed. The rate of growth is approximately 1.25 centimeters, or about 0.5 inches, per month.\n\nSo eyebrow hair has only been exposed to pollution, oils and dirt from our faces, abrasion from soap, etc. for around 6 months.  Head hair has been exposed to the damaging conditions for much longer - several years if you have long hair.  It gets more damaged over this longer time period.  Eyebrow hair is not exposed to damage for very long before it falls out, so you have relatively new, healthy hair in your eyebrows all the time.
489019
Q#2, seriously.. You can darken your eyebrows with dark eye shadow, dampen it and it will last longer.
447655
I believe that you have a good grasp of the concept of why we have hair based on the text you submitted and that your question actually is... why have we not lost hair? or\n"why havn't we evolved?"\nThis is a way too common misunderstanding of what evolution is.  In order for organisms to "evolve" there needs to be selective pressure on the ability of the organism to survive and allow it to pass its genetic material to the next generation (ie. be able to successfully breed)  For people to lose their hair there would need to be some sort of reason why we should.  For example if some sort of parasitic worm infested the earth  and and ate people who grow hair on their heads (hypothetically of course) then the people who are most likely to live and pass on their genes would be people that grow less hair.  Over time, the population would be limited to survivors of this parasitic hair loving worm, which would be people with little or no hair. That is how evolution works, just because we may not really need hair now in order to breed sucessfully, I know plenty of bald men with children, doesn't mean that nature will automatically detect this and spontaneously cause people to lose their hair over "thousands of years".  There needs to be some survival factor in play.  \nOk, that was fun....watch out for those hair worms.