f you compare modern human beings to our prehistoric ancestors, one of the most obvious physical differences you'll find is the lack of a massive brow ridge. Over time, human evolution led to us developing finer facial features, smoother foreheads, and eyebrows. But why did this happen? Read on to find out!
A recent study, published in Nature Ecology and Evolution claims that eyebrows that are mobile help people with non-verbal communication, which is one of the traits that make us the most advanced human species to ever exist. In contrast, the Neanderthals' jutting brow was used for displays of dominance and sexual attraction instead, similar to the function of a stag's antlers.
"Sexually dimorphic display and social signaling is a convincing explanation for the jutting brows of our ancestors," said Paul O'Higgins, senior author and professor of Anatomy at the University of York.
"Their conversion to a more vertical brow in modern humans allowed for the display of friendlier emotions, which helped form social bonds between individuals".
Around 100,000 years ago, human groups began to diversify their social networks, which is why it made evolutionary sense to prioritize emotional responses over violent adaptations. Scientists claim that it is around this point in history that human being began to develop smaller and flatter brow ridges, as well as the mobile eyebrows that we still have today.
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According to co-author Penny Spikins from the Department of Archaeology at the University of York, "eyebrow movements allow us to express complex emotions as well as perceive the emotions of others."
"A rapid "eyebrow flash" is a cross-cultural sign of recognition and openness to social interaction and pulling our eyebrows up at the middle is an expression of sympathy. Tiny movements of the eyebrows are also a key component to identifying trustworthiness and deception. On the flip side, it has been shown that people who have had botox which limits eyebrow movement are less able to empathize and identify with the emotions of others."
While this study is not a hundred percent conclusive, it does go to show that at some point in history, our ancestors decided to voluntarily self-domesticize in order to get on better with the people around them, which is something that modern humans can learn a lot from!
badbobby wrote:
f you compare modern human beings to our prehistoric ancestors, one of the most obvious physical differences you'll find is the lack of a massive brow ridge. Over time, human evolution led to us developing finer facial features, smoother foreheads, and eyebrows. But why did this happen? Read on to find out!
A recent study, published in Nature Ecology and Evolution claims that eyebrows that are mobile help people with non-verbal communication, which is one of the traits that make us the most advanced human species to ever exist. In contrast, the Neanderthals' jutting brow was used for displays of dominance and sexual attraction instead, similar to the function of a stag's antlers.
"Sexually dimorphic display and social signaling is a convincing explanation for the jutting brows of our ancestors," said Paul O'Higgins, senior author and professor of Anatomy at the University of York.
"Their conversion to a more vertical brow in modern humans allowed for the display of friendlier emotions, which helped form social bonds between individuals".
Around 100,000 years ago, human groups began to diversify their social networks, which is why it made evolutionary sense to prioritize emotional responses over violent adaptations. Scientists claim that it is around this point in history that human being began to develop smaller and flatter brow ridges, as well as the mobile eyebrows that we still have today.
According to co-author Penny Spikins from the Department of Archaeology at the University of York, "eyebrow movements allow us to express complex emotions as well as perceive the emotions of others."
"A rapid "eyebrow flash" is a cross-cultural sign of recognition and openness to social interaction and pulling our eyebrows up at the middle is an expression of sympathy. Tiny movements of the eyebrows are also a key component to identifying trustworthiness and deception. On the flip side, it has been shown that people who have had botox which limits eyebrow movement are less able to empathize and identify with the emotions of others."
While this study is not a hundred percent conclusive, it does go to show that at some point in history, our ancestors decided to voluntarily self-domesticize in order to get on better with the people around them, which is something that modern humans can learn a lot from!
f you compare modern human beings to our prehistor... (
show quote)
My eyebrows are quite bushy and often appear out-of-control, BB. What does that say about me
I do trim them weekly.
badbobby wrote:
f you compare modern human beings to our prehistoric ancestors, one of the most obvious physical differences you'll find is the lack of a massive brow ridge. Over time, human evolution led to us developing finer facial features, smoother foreheads, and eyebrows. But why did this happen? Read on to find out!
A recent study, published in Nature Ecology and Evolution claims that eyebrows that are mobile help people with non-verbal communication, which is one of the traits that make us the most advanced human species to ever exist. In contrast, the Neanderthals' jutting brow was used for displays of dominance and sexual attraction instead, similar to the function of a stag's antlers.
"Sexually dimorphic display and social signaling is a convincing explanation for the jutting brows of our ancestors," said Paul O'Higgins, senior author and professor of Anatomy at the University of York.
"Their conversion to a more vertical brow in modern humans allowed for the display of friendlier emotions, which helped form social bonds between individuals".
Around 100,000 years ago, human groups began to diversify their social networks, which is why it made evolutionary sense to prioritize emotional responses over violent adaptations. Scientists claim that it is around this point in history that human being began to develop smaller and flatter brow ridges, as well as the mobile eyebrows that we still have today.
-
According to co-author Penny Spikins from the Department of Archaeology at the University of York, "eyebrow movements allow us to express complex emotions as well as perceive the emotions of others."
"A rapid "eyebrow flash" is a cross-cultural sign of recognition and openness to social interaction and pulling our eyebrows up at the middle is an expression of sympathy. Tiny movements of the eyebrows are also a key component to identifying trustworthiness and deception. On the flip side, it has been shown that people who have had botox which limits eyebrow movement are less able to empathize and identify with the emotions of others."
While this study is not a hundred percent conclusive, it does go to show that at some point in history, our ancestors decided to voluntarily self-domesticize in order to get on better with the people around them, which is something that modern humans can learn a lot from!
f you compare modern human beings to our prehistor... (
show quote)
I hope they did better work than this excerpt indicates. because all of it is speculation. I wonder how many of these studies were done with government grants.
The remark about Botox-frozen eyebrows preventing people from having empathy or ability to identify with others emotions is not proof that eyebrow mobility is a means of communicating. It suggests to me that the narcissistic personality types who use Botox were already deficient in empathy. Anyone so immersed in their own appearance wants only one emotion from others, admiration.
At some point in our prehistory there were several types of humans, Cro-Magnon, Neanderthal and Homo Sapiens. Something at some point caused a significant change in genotype to distinguish between Cro-Magnons and Neanderthals, (There were other species as well). Cro-Magnon's phenotype was modified into the current version of Homo Sapiens. Did the need for communication drive the motility of the eyebrow or was the eyebrow waggled to fill a need for non-verbal communication?
While 'screwing up' your facial features in various moues, is usually identifiable as to meaning, sounds and words have been the prime mode of communication. There is no evidence that something that would have been so culturally and biologically ingrained is in use today. No one refers to a persons expressive eyebrows. Popular magazines tell you how to shape them, pluck them , alter their position on your face but nowhere does any reference exist, for how you say 'hello' with eyebrows.
A better question to me is why has the significant diversity of species stopped? Is what we call race actually sub-species? We blithely say Africans are brown-black because of the need for built in sun screen. Europeans are various shades of less brown ranging from olive to fish-belly white, each due to the exposures they get to the sun. Instead of being phenotype modifications could these differences be different species?
If they aren't as bad as this guys you are good to go.
John L. Lewis Coal Miner's Union Leader Anthracite Coal Industry
pafret wrote:
If they aren't as bad as this guys you are good to go.
John L. Lewis Coal Miner's Union Leader Anthracite Coal Industry
If not trimmed regularly, mine would rival Mr. Lewis' eyebrows, though not yet quite so 'platinum'.
pafret wrote:
I hope they did better work than this excerpt indicates. because all of it is speculation. I wonder how many of these studies were done with government grants.
The remark about Botox-frozen eyebrows preventing people from having empathy or ability to identify with others emotions is not proof that eyebrow mobility is a means of communicating. It suggests to me that the narcissistic personality types who use Botox were already deficient in empathy. Anyone so immersed in their own appearance wants only one emotion from others, admiration.
At some point in our prehistory there were several types of humans, Cro-Magnon, Neanderthal and Homo Sapiens. Something at some point caused a significant change in genotype to distinguish between Cro-Magnons and Neanderthals, (There were other species as well). Cro-Magnon's phenotype was modified into the current version of Homo Sapiens. Did the need for communication drive the motility of the eyebrow or was the eyebrow waggled to fill a need for non-verbal communication?
While 'screwing up' your facial features in various moues, is usually identifiable as to meaning, sounds and words have been the prime mode of communication. There is no evidence that something that would have been so culturally and biologically ingrained is in use today. No one refers to a persons expressive eyebrows. Popular magazines tell you how to shape them, pluck them , alter their position on your face but nowhere does any reference exist, for how you say 'hello' with eyebrows.
A better question to me is why has the significant diversity of species stopped? Is what we call race actually sub-species? We blithely say Africans are brown-black because of the need for built in sun screen. Europeans are various shades of less brown ranging from olive to fish-belly white, each due to the exposures they get to the sun. Instead of being phenotype modifications could these differences be different species?
I hope they did better work than this excerpt indi... (
show quote)
Sounds like a whole bunch of speculation, though my dogs have ALWAYS done a good job of communicating with their eyebrows.
Big dog wrote:
Sounds like a whole bunch of speculation, though my dogs have ALWAYS done a good job of communicating with their eyebrows.
And their teeth as do all dogs.
Cute picture. Thanks they look like their puzzled by my comment. I have had my share of dogs over the years mostly German Short Hired pointers as I usually hunted pheasants and they were great. They also showed their teeth to make a point.
slatten49 wrote:
If not trimmed regularly, mine would rival Mr. Lewis' eyebrows, though not yet quite so 'platinum'.
I was almost thinking that Papi was the one to do in OPP so that they would let him back sooner.
bahmer wrote:
I was almost thinking that Papi was the one to do in OPP so that they would let him back sooner.
Did badbobby take off and go fishing again today. I guess he wants to be here tomorrow and here me scream all day after going to the dentist in the morning to have a tooth yanked out. I may become a closer friend of Brandy tomorrow as well.
bahmer wrote:
Did badbobby take off and go fishing again today. I guess he wants to be here tomorrow and here me scream all day after going to the dentist in the morning to have a tooth yanked out. I may become a closer friend of Brandy tomorrow as well.
Who knows about the ol' feller, as he finds ways to lollygag the day away.
I hear that Brandy is a fine girl, and sure to offer you solace.
I will be in & out all day in preparation for our leaving early in the morning, so be patient. I will close out my computer sometime mid-evening.
slatten49 wrote:
Who knows about the ol' feller, as he finds ways to lollygag the day away.
I hear that Brandy is a fine girl, and sure to offer you solace.
I will be in & out all day in preparation for our leaving early in the morning, so be patient. I will close out my computer sometime mid-evening.
Well good luck and everything. Is the Sgt, Major going with and how is she doing after her cataract surgery. I hope all is going fine for her. I'm sure that relying on you could be worse although not much worse.
bahmer wrote:
Well good luck and everything. Is the Sgt, Major going with and how is she doing after her cataract surgery. I hope all is going fine for her. I'm sure that relying on you could be worse although not much worse.
Her eyesight is much better since the surgery. I am now in danger, as I'm one of those guys who always looked better at closing time. I'll be alright, though, as The Sgt. Major has come to worship the very ground I slither on.
slatten49 wrote:
Her eyesight is much better since the surgery. I am now in danger, as I'm one of those guys who always looked better at closing time. I'll be alright, though, as The Sgt. Major has come to worship the very ground I slither on.
I am sure that after you return from this romantic trip visiting family and out east you should be like newly weds when you return home. You can then carry her over the threshold again and be all lovey dovey again. Have a good trip you guys and take care.
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