| 释义 |
1 [鸟]?飞羽 ... pennon 细长三角旗 flight feather 飞羽 quill 羽茎 ... 2 ?翼羽 ... 腰荐曲 flexure; lumbo-sacral 翼羽；飞羽 flight feather 飘浮体 floate ...
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Only after stage 4 could additional feather variations evolve, including the many specializations we see at stage 5, such as the asymmetrical vane of a flight feather. 一旦演化到阶段4之后，其他各种不同的羽毛才能够演化出来，包括我们在阶段5看到的各种特化羽毛，例如飞羽的不对称羽片。 - 2
A tiny feathered "thumb," the alula, improves flight control. The protruding shaft on the first wing feather makes a loud, rustling sound—adding acoustics to the visual display. 微小的拇翼改善了对飞行的控制能力，第一翼羽上的凸出轴结构会发出沙沙的响声——在保持视觉效果的同时还增添了声学效果。 - 3
Wing feather with copper-containing pigment, flight and display, Courtesy Peter Mullen, Ph.D. 带有铜类色素的翅羽，飞行和展示用，彼得·穆伦博士惠赠
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