英发现世界最小化石 长度不到五分之一毫米
<p><span word="Scientists">Scientists</span> <span word="at">at</span> <span word="the">the</span> <span word="University">University</span> <span word="of">of</span> <span word="Manchester">Manchester</span> <span word="have">have</span> <span word="discovered">discovered</span> <span word="what">what</span> <span word="is">is</span> <span word="believed">believed</span> <span word="to">to</span> <span word="be">be</span> <span word="the">the</span> <span word="smallest">smallest</span> <span word="fossil">fossil</span> <span word="ever">ever</span> <span word="found">found</span>.</p><p><span word="A">A</span> 50-<span word="million">million</span>-<span word="year">year</span>-<span word="old">old</span> <span word="parasite">parasite</span> - <span word="hitching">hitching</span> <span word="a">a</span> <span word="ride">ride</span> <span word="on">on</span> <span word="a">a</span> <span word="not">not</span>-<span word="much">much</span>-<span word="bigger">bigger</span> <span word="spider">spider</span> - <span word="was">was</span> <span word="discovered">discovered</span> <span word="during">during</span> <span word="a">a</span> <span word="scan">scan</span> <span word="of">of</span> <span word="Baltic">Baltic</span> <span word="amber">amber</span>.</p><p><span word="Published">Published</span> <span word="in">in</span> <span word="the">the</span> <span word="Royal">Royal</span> <span word="Society">Society</span>'<span word="s">s</span> <span word="Biology">Biology</span> <span word="Letters">Letters</span>, <span word="the">the</span> <span word="find">find</span> <span word="was">was</span> <span word="made">made</span> <span word="using">using</span> <span word="a">a</span> <span word="computed">computed</span> <span word="tomography">tomography</span> (<span word="CT">CT</span>) <span word="scan">scan</span>, <span word="which">which</span> <span word="builds">builds</span> <span word="up">up</span> <span word="a">a</span> 3-<span word="D">D</span> <span word="image">image</span> <span word="from">from</span> <span word="multiple">multiple</span> <span word="flat">flat</span> <span word="scans">scans</span>.</p><p><span word="Biologist">Biologist</span> <span word="Dr">Dr</span> <span word="David">David</span> <span word="Penney">Penney</span> <span word="wrote">wrote</span> <span word="in">in</span> <span word="the">the</span> <span word="paper">paper</span> <span word="that">that</span> <span word="the">the</span> <span word="arthropod">arthropod</span> <span word="fossil">fossil</span> <span word="was">was</span> <span word="extremely">extremely</span> <span word="small">small</span> - <span word="less">less</span> <span word="than">than</span> <span word="two">two</span> <span word="tenths">tenths</span> <span word="of">of</span> <span word="a">a</span> <span word="millimetre">millimetre</span> <span word="long">long</span> - <span word="and">and</span> “<span word="extremely">extremely</span> <span word="rare">rare</span>”.</p><p><span word="Dr">Dr</span> <span word="Penney">Penney</span> <span word="wrote">wrote</span> <span word="that">that</span> <span word="the">the</span> <span word="Faculty">Faculty</span> <span word="of">of</span> <span word="Life">Life</span> <span word="Sciences">Sciences</span> <span word="teams">teams</span> <span word="would">would</span> <span word="not">not</span> <span word="have">have</span> <span word="been">been</span> <span word="able">able</span> <span word="to">to</span> <span word="identify">identify</span> <span word="the">the</span> <span word="mite">mite</span> <span word="without">without</span> <span word="the">the</span> <span word="CT">CT</span> <span word="scan">scan</span>.</p><p><span word="He">He</span> <span word="told">told</span> <span word="the">the</span> <span word="BBC">BBC</span>: “<span word="CT">CT</span> <span word="allowed">allowed</span> <span word="us">us</span> <span word="to">to</span> <span word="digitally">digitally</span> <span word="dissect">dissect</span> <span word="the">the</span> <span word="mite">mite</span> <span word="off">off</span> <span word="the">the</span> <span word="spider">spider</span> <span word="in">in</span> <span word="order">order</span> <span word="to">to</span> <span word="reveal">reveal</span> <span word="the">the</span> <span word="important">important</span> <span word="features">features</span> <span word="on">on</span> <span word="the">the</span> <span word="underside">underside</span> <span word="required">required</span> <span word="for">for</span> <span word="identification">identification</span>.”</p><p>“<span word="The">The</span> <span word="specimen">specimen</span>, <span word="which">which</span> <span word="is">is</span> <span word="extremely">extremely</span> <span word="rare">rare</span> <span word="in">in</span> <span word="the">the</span> <span word="fossil">fossil</span> <span word="record">record</span>, <span word="is">is</span> <span word="potentially">potentially</span> <span word="the">the</span> <span word="oldest">oldest</span> <span word="record">record</span> <span word="of">of</span> <span word="the">the</span> <span word="living">living</span> <span word="family">family</span> <span word="Histiostomatidae">Histiostomatidae</span>. “</p><p>“<span word="Most">Most</span> <span word="amber">amber</span> <span word="fossils">fossils</span> <span word="consist">consist</span> <span word="of">of</span> <span word="individual">individual</span> <span word="insects">insects</span> <span word="or">or</span> <span word="several">several</span> <span word="insects">insects</span> <span word="together">together</span>, <span word="but">but</span> <span word="without">without</span> <span word="unequivocal">unequivocal</span> <span word="demonstrable">demonstrable</span> <span word="evidence">evidence</span> <span word="of">of</span> <span word="direct">direct</span> <span word="interaction">interaction</span>. “</p><p><span word="Fellow">Fellow</span> <span word="biologist">biologist</span> <span word="Dr">Dr</span> <span word="Richard">Richard</span> <span word="Prezoisi">Prezoisi</span> <span word="added">added</span> <span word="that">that</span> <span word="the">the</span> <span word="team">team</span> <span word="could">could</span> <span word="now">now</span> <span word="date">date</span> <span word="how">how</span> <span word="long">long</span> <span word="species">species</span> <span word="such">such</span> <span word="as">as</span> <span word="the">the</span> <span word="mite">mite</span> <span word="had">had</span> <span word="been">been</span> <span word="using">using</span> <span word="larger">larger</span> <span word="organisms">organisms</span> <span word="for">for</span> <span word="transportation">transportation</span>.</p><p><span word="He">He</span> <span word="said">said</span> <span word="it">it</span> <span word="would">would</span> <span word="give">give</span> “<span word="important">important</span> <span word="clues">clues</span> <span word="as">as</span> <span word="to">to</span> <span word="how">how</span> <span word="far">far</span> <span word="back">back</span> <span word="in">in</span> <span word="geological">geological</span> <span word="time">time</span> <span word="such">such</span> <span word="behaviours">behaviours</span> <span word="evolved">evolved</span>”.</p>
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