蝙蝠龙是一种喙嘴龙,翼展1.6米,头很大。当它要飞翔时,会爬到树梢上或崖壁上,一旦有上升气流,就会用腿蹬开崖壁,开始滑翔。只不过它不是以昆虫为食,而是靠视力好的双眼寻找恐龙的尸体吃,是当时的兀鹰。
翼龙的整体结构和比例与鸟类和蝙蝠都很相似。
The pterosaurs resembled both birds and bats in their overall structure and proportions.
第一个(假设)错误地认为翼龙的后脚类似于蝙蝠的后脚,可以作为钩子,用来挂起来准备飞行。
The first wrongly assumes that the pterosaurs' hind feet resembled a bat's and could serve as hooks by which the animal could hang in preparation for flight.
飞行能力一共有四次的进化突破:昆虫是三亿年前进化过来的,翼龙是二亿三千万年前进化的,鸟类是一亿万千万年前进化的,而蝙蝠是五千万年前进化的。
It has evolved only four times: among the insects about 300m years ago, the pterosaurs (230m), the birds (150m) and the bats (50m).
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