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为什么越接近现代动物的体型越小,而史前却有很多身形巨大的动物? (opens in new tab)

<div class="main-wrap content-wrap"> <div class="headline"> <div class="img-place-holder"></div> </div> <div class="content-inner"> <div class="question"> <h2 class="question-title"></h2> <div class="answer"> <div class="meta"> <img class="avatar" src=" referrerpolicy="no-referrer"> <span class="author">赵泠,</span><span class="bio">衣沾不足惜,但使愿无违。</span> <a href=" class="originUrl" hidden="">查看知乎原文</a> </div> <div class="content"> <p><strong>不是那样</strong>。现存的蓝鲸是可确认的地球历史上个体体积最大、个体体重最大的...

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