十大巨兽排行榜:巨脉蜻蜓。翼展78厘米。可以比较一下这只现在大蜻蜓翼展尺寸顶多是古老巨脉蜻蜓的五分之一光凭这片翅膀就能看出巨脉蜻蜓惊人。最大的昆虫——巨脉蜻蜓。
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国家地理纪录片：《十大巨兽排行榜》。
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