Hesperornis is an extinct genus of flightless aquatic birds that lived during the Late Cretaceous.
黄昏是一种绝的不飞翔的,活在白垩纪晚期。
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These feathers, then, presumably adorned a diving bird-perhaps Hesperornis, a flightless North American diver from precisely this period.
这想必当时是归潜鸟所有——也许是“黄昏鸟”,一种恰在这一时期不会飞翔的北美潜鸟。
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