Pterosaurs, which soared overhead while dinosaurs stomped the land, had muscles that provided an aerodynamic profile.

中文翻译：

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古代爬行动物是如何流线型飞行的

翼龙在恐龙踩踏土地时在头顶翱翔，它们的肌肉提供了空气动力学的轮廓。