The second picture shows one similar in shape to those sported by modern birds.
第二幅图显示的羽毛形状与现代鸟类羽毛相似。
Modern feathers consist of thousands of fibres held together by tiny hooks.
现代鸟类羽毛由成千上万束靠细钩聚拢在一起的纤维构成。
The details of that design can be tweaked to change a feather s characteristics, offeringwaterproofing, insulation, streamlining and so on.
通过改进羽毛构造的细节可改变它的特性,如防水、隔热、流线造型等功能。
The third picture shows feathers thathave just such a specialisation: coiling reminiscent of that seen in the feathers of moderndivers.
第三幅图显示的羽毛就具备这样的特殊功能:螺旋造型与现代潜鸟的羽毛相似。
Such coiling allows a feather to absorb water, which streamlines and insulates the owner.
这种螺旋形状的羽毛能够吸水,并使该鸟类身形更加精巧同时起保温作用。
These feathers, then, presumably adorned a diving bird-perhaps Hesperornis, a flightlessNorth American diver from precisely this period.
这些羽毛想必当时是归潜鸟所有也许是黄昏鸟,一种恰好生活在这一时期不会飞翔的北美潜鸟。
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