- and today's grazing mammals
今天的食草哺乳动物 - remain locked in an arms race with this green invader.
仍在与这绿色入侵者 继续展开军备竞赛 - They have evolved a whole swathe of game-changing adaptations.
它们进化出了 一系列极为重要的适应性 - Specialized teeth,
经过特别加强的牙齿 - strengthened to prevent silica in the grass from wearing them out...
能够防止草中的二氧化硅磨损牙齿 - and huge bellies to process it all.
巨大的腹部 用于将草消化 - Their young are born fully formed...
幼崽一出生就完全成型
Specialized teeth, 经过特别加强的牙齿
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