世界最大雀巢 你不知道的群织雀
<p><span word="Africa">Africa</span>’<span word="s">s</span> <span word="incredible">incredible</span> <span word="social">social</span> <span word="weaver">weaver</span>, <span word="about">about</span> <span word="the">the</span> <span word="size">size</span> <span word="of">of</span> <span word="the">the</span> <span word="sparrows">sparrows</span>, <span word="come">come</span> <span word="together">together</span> <span word="in">in</span> <span word="colonies">colonies</span> <span word="of">of</span> <span word="as">as</span> <span word="many">many</span> <span word="as">as</span> 500 <span word="individuals">individuals</span> <span word="to">to</span> <span word="build">build</span> <span word="by">by</span> <span word="far">far</span> <span word="the">the</span> <span word="most">most</span> <span word="enormous">enormous</span> <span word="nests">nests</span> <span word="on">on</span> <span word="Earth">Earth</span>, <span word="at">at</span> <span word="more">more</span> <span word="than">than</span> 2,000 <span word="pounds">pounds</span> <span word="and">and</span> 20 <span word="feet">feet</span> <span word="long">long</span> <span word="by">by</span> 13 <span word="feet">feet</span> <span word="wide">wide</span> <span word="by">by</span> 7 <span word="feet">feet</span> <span word="thick">thick</span>. <span word="The">The</span> <span word="structures">structures</span> <span word="are">are</span> <span word="so">so</span> <span word="big">big</span> <span word="they">they</span> <span word="can">can</span> <span word="collapse">collapse</span> <span word="the">the</span> <span word="trees">trees</span> <span word="they">they</span>’<span word="re">re</span> <span word="built">built</span> <span word="in">in</span>, <span word="and">and</span> <span word="so">so</span> <span word="well">well</span>-<span word="constructed">constructed</span> <span word="they">they</span> <span word="can">can</span> <span word="last">last</span> <span word="for">for</span> <span word="a">a</span> <span word="century">century</span>. <span word="Occupying">Occupying</span> <span word="as">as</span> <span word="many">many</span> <span word="as">as</span> 100 <span word="chambers">chambers</span>, <span word="these">these</span> <span word="are">are</span> <span word="quite">quite</span> <span word="possibly">possibly</span> <span word="the">the</span> <span word="biggest">biggest</span> <span word="vertebrate">vertebrate</span> <span word="societies">societies</span> <span word="centered">centered</span> <span word="around">around</span> <span word="a">a</span> <span word="single">single</span> <span word="structure">structure</span>—<span word="outside">outside</span> <span word="of">of</span> <span word="human">human</span> <span word="beings">beings</span> <span word="and">and</span> <span word="their">their</span> <span word="skyscrapers">skyscrapers</span>, <span word="of">of</span> <span word="course">course</span>.</p><p>非洲的群织雀大概和麻雀一般大小。500只群织雀聚居在一起，修建了世界上最大的窝巢——它重达2000磅，长20英尺，高7英尺。这个巢穴是如此的巨大，以至于它可以拖垮一棵大树；而且修建精良可以留存一个世纪。巢穴里大约有一百个房间，这大概是围绕着一个中心结构的脊椎结构的社会了——当然，除了人类和他们的摩天大楼。</p><p><span word="Calling">Calling</span> <span word="the">the</span> <span word="semi">semi</span>-<span word="arid">arid</span> <span word="plains">plains</span> <span word="of">of</span> <span word="Namibia">Namibia</span> <span word="and">and</span> <span word="South">South</span> <span word="Africa">Africa</span> <span word="its">its</span> <span word="home">home</span>, <span word="social">social</span> <span word="weavers">weavers</span> <span word="make">make</span> <span word="use">use</span> <span word="of">of</span> <span word="several">several</span> <span word="different">different</span> <span word="materials">materials</span>, <span word="building">building</span> <span word="the">the</span> <span word="nest">nest</span> <span word="by">by</span> <span word="weaving">weaving</span> <span word="in">in</span> <span word="twig">twig</span> <span word="after">after</span> <span word="twig">twig</span>. <span word="Then">Then</span> <span word="they">they</span> <span word="line">line</span> <span word="the">the</span> <span word="insides">insides</span> <span word="of">of</span> <span word="the">the</span> <span word="chambers">chambers</span> <span word="with">with</span> <span word="luxurious">luxurious</span> <span word="grass">grass</span> <span word="and">and</span> <span word="feathers">feathers</span> <span word="and">and</span>, <span word="occasionally">occasionally</span>, <span word="cotton">cotton</span> <span word="balls">balls</span>.</p><p>以半干燥的纳米比亚平原和南非为家，群织雀利用不同种类的材料，一个树枝一个树枝地织起它们的巢穴。一间间房里铺着奢华青草和羽毛，偶尔还有棉球出现。</p>
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