时速56公里！关于长颈鹿的12个真相
<p><span word="Some">Some</span> <span word="zoologists">zoologists</span> <span word="think">think</span> <span word="that">that</span> <span word="the">the</span> <span word="giraffe">giraffe</span>'<span word="s">s</span> <span word="pattern">pattern</span> <span word="is">is</span> <span word="for">for</span> <span word="camouflage">camouflage</span>. <span word="Many">Many</span> <span word="people">people</span> <span word="have">have</span> <span word="reported">reported</span> <span word="mistaking">mistaking</span> <span word="a">a</span> <span word="giraffe">giraffe</span> <span word="for">for</span> <span word="an">an</span> <span word="old">old</span> <span word="dead">dead</span> <span word="tree">tree</span>. <span word="When">When</span> <span word="the">the</span> <span word="tree">tree</span> <span word="walked">walked</span> <span word="away">away</span>, <span word="they">they</span> <span word="realized">realized</span> <span word="that">that</span> <span word="it">it</span> <span word="was">was</span> <span word="a">a</span> <span word="giraffe">giraffe</span>.</p><p>一些动物学家认为长颈鹿身上的花纹是用来伪装自己的。很多人都表示曽把一只长颈鹿看成一棵枯死的老树。当树自己走开了，他们才发现那是长颈鹿。</p><p><span word="A">A</span> <span word="giraffe">giraffe</span>'<span word="s">s</span> <span word="feet">feet</span> <span word="are">are</span> <span word="the">the</span> <span word="size">size</span> <span word="of">of</span> <span word="a">a</span> <span word="dinner">dinner</span> <span word="plate">plate</span>—12 <span word="inches">inches</span> <span word="across">across</span> (30.5 <span word="centimeters">centimeters</span>).</p><p>长颈鹿的脚跟西餐用的大盘子差不多大——直径12英寸（30.5厘米）。</p><p><span word="Giraffes">Giraffes</span> <span word="have">have</span> <span word="the">the</span> <span word="same">same</span> <span word="number">number</span> <span word="of">of</span> <span word="vertebrae">vertebrae</span> <span word="in">in</span> <span word="their">their</span> <span word="necks">necks</span> <span word="as">as</span> <span word="we">we</span> <span word="do">do</span>—<span word="seven">seven</span>.</p><p>长颈鹿的脊椎骨数量跟我们的一样——都是7块。</p><p><span word="A">A</span> <span word="giraffe">giraffe</span>'<span word="s">s</span> <span word="tongue">tongue</span> <span word="is">is</span> 18 <span word="to">to</span> 20 <span word="inches">inches</span> (46 <span word="to">to</span> 50 <span word="centimeters">centimeters</span>) <span word="long">long</span> <span word="and">and</span> <span word="blue">blue</span>-<span word="black">black</span>. <span word="The">The</span> <span word="color">color</span> <span word="may">may</span> <span word="keep">keep</span> <span word="the">the</span> <span word="tongue">tongue</span> <span word="from">from</span> <span word="getting">getting</span> <span word="sunburned">sunburned</span>.</p><p>长颈鹿的舌头有18到20英寸长（46到50厘米），颜色是蓝黑色。那样的颜色或许可以保护舌头不被晒伤。</p><p><span word="Giraffes">Giraffes</span> <span word="can">can</span> <span word="moo">moo</span>, <span word="hiss">hiss</span>, <span word="roar">roar</span>, <span word="and">and</span> <span word="whistle">whistle</span>.</p><p>长颈鹿可以像牛那样哞哞叫，也可以发出蛇那样的嘶嘶声，会咆哮，也会吹口哨。</p><p><span word="The">The</span> <span word="record">record</span> <span word="running">running</span> <span word="speed">speed</span> <span word="of">of</span> <span word="a">a</span> <span word="giraffe">giraffe</span> <span word="is">is</span> 34.7 <span word="miles">miles</span> <span word="per">per</span> <span word="hour">hour</span> (56 <span word="kilometers">kilometers</span> <span word="per">per</span> <span word="hour">hour</span>).</p><p>长颈鹿的奔跑速度最快纪录是每小时34.7英里（每小时56千米）。</p><p><span word="The">The</span> <span word="giraffes">giraffes</span> <span word="at">at</span> <span word="the">the</span> <span word="San">San</span> <span word="Diego">Diego</span> <span word="Zoo">Zoo</span> <span word="enjoy">enjoy</span> <span word="raw">raw</span> <span word="onions">onions</span> <span word="as">as</span> <span word="a">a</span> <span word="treat">treat</span>.</p>
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