科学家发现非洲以外人类最古老的脚印遗迹
<p><span word="The">The</span> <span word="footprints">footprints</span> <span word="on">on</span> <span word="Happisburgh">Happisburgh</span> <span word="beach">beach</span> <span word="are">are</span> <span word="possibly">possibly</span> <span word="those">those</span> <span word="of">of</span> <span word="a">a</span> <span word="family">family</span> <span word="in">in</span> <span word="search">search</span> <span word="of">of</span> <span word="food">food</span></p><p><span word="Scientists">Scientists</span> <span word="have">have</span> <span word="discovered">discovered</span> <span word="the">the</span> <span word="earliest">earliest</span> <span word="evidence">evidence</span> <span word="of">of</span> <span word="human">human</span> <span word="footprints">footprints</span> <span word="outside">outside</span> <span word="of">of</span> <span word="Africa">Africa</span>, <span word="on">on</span> <span word="the">the</span> <span word="Norfolk">Norfolk</span> <span word="Coast">Coast</span> <span word="in">in</span> <span word="the">the</span> <span word="East">East</span> <span word="of">of</span> <span word="England">England</span>.</p><p><span word="The">The</span> <span word="footprints">footprints</span> <span word="are">are</span> <span word="more">more</span> <span word="than">than</span> 800,000 <span word="years">years</span> <span word="old">old</span> <span word="and">and</span> <span word="were">were</span> <span word="found">found</span> <span word="on">on</span> <span word="the">the</span> <span word="shores">shores</span> <span word="of">of</span> <span word="Happisburgh">Happisburgh</span>.</p><p><span word="They">They</span> <span word="are">are</span> <span word="direct">direct</span> <span word="evidence">evidence</span> <span word="of">of</span> <span word="the">the</span> <span word="earliest">earliest</span> <span word="known">known</span> <span word="humans">humans</span> <span word="in">in</span> <span word="northern">northern</span> <span word="Europe">Europe</span>.</p><p><span word="Details">Details</span> <span word="of">of</span> <span word="the">the</span> <span word="extraordinary">extraordinary</span> <span word="markings">markings</span> <span word="have">have</span> <span word="been">been</span> <span word="published">published</span> <span word="in">in</span> <span word="the">the</span> <span word="science">science</span> <span word="journal">journal</span> <span word="Plos">Plos</span> <span word="One">One</span>.</p><p><span word="The">The</span> <span word="footprints">footprints</span> <span word="have">have</span> <span word="been">been</span> <span word="described">described</span> <span word="as">as</span> "<span word="one">one</span> <span word="of">of</span> <span word="the">the</span> <span word="most">most</span> <span word="important">important</span> <span word="discoveries">discoveries</span>, <span word="if">if</span> <span word="not">not</span> <span word="the">the</span> <span word="most">most</span> <span word="important">important</span> <span word="discovery">discovery</span> <span word="that">that</span> <span word="has">has</span> <span word="been">been</span> <span word="made">made</span> <span word="on">on</span> [<span word="Britain">Britain</span>'<span word="s">s</span>] <span word="shores">shores</span>," <span word="by">by</span> <span word="Dr">Dr</span> <span word="Nick">Nick</span> <span word="Ashton">Ashton</span> <span word="of">of</span> <span word="the">the</span> <span word="British">British</span> <span word="Museum">Museum</span>.</p><p>"<span word="It">It</span> <span word="will">will</span> <span word="rewrite">rewrite</span> <span word="our">our</span> <span word="understanding">understanding</span> <span word="of">of</span> <span word="the">the</span> <span word="early">early</span> <span word="human">human</span> <span word="occupation">occupation</span> <span word="of">of</span> <span word="Britain">Britain</span> <span word="and">and</span> <span word="indeed">indeed</span> <span word="of">of</span> <span word="Europe">Europe</span>," <span word="he">he</span> <span word="told">told</span> <span word="BBC">BBC</span> <span word="News">News</span>.</p><p><span word="The">The</span> <span word="markings">markings</span> <span word="were">were</span> <span word="first">first</span> <span word="indentified">indentified</span> <span word="in">in</span> <span word="May">May</span> <span word="last">last</span> <span word="year">year</span> <span word="during">during</span> <span word="a">a</span> <span word="low">low</span> <span word="tide">tide</span>. <span word="Rough">Rough</span> <span word="seas">seas</span> <span word="had">had</span> <span word="eroded">eroded</span> <span word="the">the</span> <span word="sandy">sandy</span> <span word="beach">beach</span> <span word="to">to</span> <span word="reveal">reveal</span> <span word="a">a</span> <span word="series">series</span> <span word="of">of</span> <span word="elongated">elongated</span> <span word="hollows">hollows</span>.</p><p><span word="I">I</span> <span word="walked">walked</span> <span word="with">with</span> <span word="Dr">Dr</span> <span word="Ashton">Ashton</span> <span word="along">along</span> <span word="the">the</span> <span word="shore">shore</span> <span word="where">where</span> <span word="the">the</span> <span word="discovery">discovery</span> <span word="was">was</span> <span word="made">made</span>. <span word="He">He</span> <span word="recalled">recalled</span> <span word="how">how</span> <span word="he">he</span> <span word="and">and</span> <span word="a">a</span> <span word="colleague">colleague</span> <span word="stumbled">stumbled</span> <span word="across">across</span> <span word="the">the</span> <span word="hollows">hollows</span>: "<span word="At">At</span> <span word="the">the</span> <span word="time">time</span>, <span word="I">I</span> <span word="wondered">wondered</span> '<span word="could">could</span> <span word="these">these</span> <span word="really">really</span> <span word="be">be</span> <span word="the">the</span> <span word="case">case</span>? <span word="If">If</span> <span word="it">it</span> <span word="was">was</span> <span word="the">the</span> <span word="case">case</span>, <span word="these">these</span> <span word="could">could</span> <span word="be">be</span> <span word="the">the</span> <span word="earliest">earliest</span> <span word="footprints">footprints</span> <span word="outside">outside</span> <span word="Africa">Africa</span> <span word="and">and</span> <span word="that">that</span> <span word="would">would</span> <span word="be">be</span> <span word="absolutely">absolutely</span> <span word="incredible">incredible</span>."</p><p><span word="Such">Such</span> <span word="discoveries">discoveries</span> <span word="are">are</span> <span word="very">very</span> <span word="rare">rare</span>. <span word="The">The</span> <span word="Happisburgh">Happisburgh</span> <span word="footprints">footprints</span> <span word="are">are</span> <span word="the">the</span> <span word="only">only</span> <span word="ones">ones</span> <span word="of">of</span> <span word="this">this</span> <span word="age">age</span> <span word="in">in</span> <span word="Europe">Europe</span> <span word="and">and</span> <span word="there">there</span> <span word="are">are</span> <span word="only">only</span> <span word="three">three</span> <span word="other">other</span> <span word="sets">sets</span> <span word="that">that</span> <span word="are">are</span> <span word="older">older</span>, <span word="all">all</span> <span word="of">of</span> <span word="which">which</span> <span word="are">are</span> <span word="in">in</span> <span word="Africa">Africa</span>.</p>
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