美貌是如何形成的？
<p><span word="BEAUTY">BEAUTY</span>, <span word="the">the</span> <span word="saying">saying</span> <span word="has">has</span> <span word="it">it</span>, <span word="is">is</span> <span word="only">only</span> <span word="skin">skin</span> <span word="deep">deep</span>. <span word="Not">Not</span> <span word="true">true</span>. <span word="Skin">Skin</span> <span word="is">is</span> <span word="important">important</span> (<span word="the">the</span> <span word="cosmetics">cosmetics</span> <span word="industry">industry</span> <span word="proves">proves</span> <span word="that">that</span>). <span word="But">But</span> <span word="so">so</span> <span word="is">is</span> <span word="what">what</span> <span word="lies">lies</span> <span word="under">under</span> <span word="it">it</span>. <span word="In">In</span> <span word="particular">particular</span>, <span word="the">the</span> <span word="shape">shape</span> <span word="of">of</span> <span word="people">people</span>’<span word="s">s</span> <span word="faces">faces</span>, <span word="determined">determined</span> <span word="by">by</span> <span word="their">their</span> <span word="bone">bone</span> <span word="structure">structure</span>, <span word="contributes">contributes</span> <span word="enormously">enormously</span> <span word="to">to</span> <span word="how">how</span> <span word="beautiful">beautiful</span> <span word="they">they</span> <span word="are">are</span>. <span word="And">And</span>, <span word="since">since</span> <span word="the">the</span> <span word="ultimate">ultimate</span> <span word="point">point</span> <span word="of">of</span> <span word="beauty">beauty</span> <span word="is">is</span> <span word="to">to</span> <span word="signal">signal</span> <span word="who">who</span> <span word="is">is</span> <span word="a">a</span> <span word="good">good</span> <span word="prospect">prospect</span> <span word="as">as</span> <span word="a">a</span> <span word="mate">mate</span>, <span word="what">what</span> <span word="makes">makes</span> <span word="a">a</span> <span word="face">face</span> <span word="beautiful">beautiful</span> <span word="is">is</span> <span word="not">not</span> <span word="only">only</span> <span word="an">an</span> <span word="aesthetic">aesthetic</span> <span word="matter">matter</span> <span word="but">but</span> <span word="also">also</span> <span word="a">a</span> <span word="biological">biological</span> <span word="one">one</span>. <span word="How">How</span> <span word="those">those</span> <span word="bone">bone</span> <span word="structures">structures</span> <span word="arise">arise</span>, <span word="and">and</span> <span word="how">how</span> <span word="they">they</span> <span word="communicate">communicate</span> <span word="desirable">desirable</span> <span word="traits">traits</span>, <span word="are">are</span> <span word="big">big</span> <span word="evolutionary">evolutionary</span> <span word="questions">questions</span>.</p><p><span word="Until">Until</span> <span word="now">now</span>, <span word="experiments">experiments</span> <span word="to">to</span> <span word="try">try</span> <span word="to">to</span> <span word="determine">determine</span> <span word="the">the</span> <span word="biological">biological</span> <span word="basis">basis</span> <span word="of">of</span> <span word="beauty">beauty</span> <span word="have">have</span> <span word="been">been</span> <span word="of">of</span> <span word="the">the</span> <span word="please">please</span>-<span word="look">look</span>-<span word="at">at</span>-<span word="these">these</span>-<span word="photographs">photographs</span>-<span word="and">and</span>-<span word="answer">answer</span>-<span word="some">some</span>-<span word="questions">questions</span> <span word="variety">variety</span>. <span word="Some">Some</span> <span word="useful">useful</span> <span word="and">and</span> <span word="not">not</span> <span word="necessarily">necessarily</span> <span word="obvious">obvious</span> <span word="results">results</span> <span word="have">have</span> <span word="emerged">emerged</span>, <span word="such">such</span> <span word="as">as</span> <span word="that">that</span> <span word="one">one</span> <span word="determinant">determinant</span> <span word="of">of</span> <span word="beauty">beauty</span> <span word="is">is</span> <span word="facial">facial</span> <span word="symmetry">symmetry</span>.</p><p><span word="But">But</span> <span word="what">what</span> <span word="would">would</span> <span word="really">really</span> <span word="help">help</span> <span word="is">is</span> <span word="a">a</span> <span word="breeding">breeding</span> <span word="experiment">experiment</span> <span word="which">which</span> <span word="allowed">allowed</span> <span word="the">the</span> <span word="shapes">shapes</span> <span word="of">of</span> <span word="faces">faces</span> <span word="to">to</span> <span word="be">be</span> <span word="followed">followed</span> <span word="across">across</span> <span word="the">the</span> <span word="generations">generations</span> <span word="to">to</span> <span word="see">see</span> <span word="how">how</span> <span word="those">those</span> <span word="shapes">shapes</span> <span word="relate">relate</span> <span word="to">to</span> <span word="variations">variations</span> <span word="in">in</span> <span word="things">things</span> <span word="that">that</span> <span word="might">might</span> <span word="be">be</span> <span word="desirable">desirable</span> <span word="in">in</span> <span word="a">a</span> <span word="mate">mate</span>. <span word="These">These</span> <span word="might">might</span> <span word="include">include</span> <span word="fertility">fertility</span>, <span word="fecundity">fecundity</span>, <span word="social">social</span> <span word="status">status</span>, <span word="present">present</span> <span word="health">health</span>, <span word="and">and</span> <span word="likely">likely</span> <span word="resistance">resistance</span> <span word="to">to</span> <span word="future">future</span> <span word="infection">infection</span> <span word="and">and</span> <span word="infestation">infestation</span>. <span word="Correlations">Correlations</span> <span word="between">between</span> <span word="many">many</span> <span word="of">of</span> <span word="these">these</span> <span word="phenomena">phenomena</span> <span word="and">and</span> <span word="attributes">attributes</span> <span word="of">of</span> <span word="the">the</span> <span word="body">body</span>-<span word="beautiful">beautiful</span> <span word="have">have</span>, <span word="indeed">indeed</span>, <span word="been">been</span> <span word="established">established</span>. <span word="But">But</span> <span word="in">in</span> <span word="a">a</span> <span word="pair">pair</span>-<span word="forming">forming</span>, <span word="highly">highly</span> <span word="social">social</span> <span word="species">species</span> <span word="such">such</span> <span word="as">as</span> <span word="Homo">Homo</span> <span word="sapiens">sapiens</span>, <span word="you">you</span> <span word="also">also</span> <span word="have">have</span> <span word="to">to</span> <span word="live">live</span> <span word="with">with</span> <span word="your">your</span> <span word="co">co</span>-<span word="child">child</span>-<span word="raiser">raiser</span> <span word="or">or</span>, <span word="at">at</span> <span word="least">least</span>, <span word="collaborate">collaborate</span> <span word="with">with</span> <span word="him">him</span> <span word="or">or</span> <span word="her">her</span>. <span word="So">So</span> <span word="other">other</span> <span word="things">things</span> <span word="may">may</span> <span word="be">be</span> <span word="important">important</span> <span word="in">in</span> <span word="a">a</span> <span word="mate">mate</span>, <span word="too">too</span>, <span word="such">such</span> <span word="as">as</span> <span word="an">an</span> <span word="even">even</span> <span word="temper">temper</span> <span word="and">and</span> <span word="a">a</span> <span word="friendly">friendly</span> <span word="outlook">outlook</span>.</p>
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