Hesperornis is an extinct genus of flightless aquatic birds that lived during the Late Cretaceous.
昏鸟是一种已经灭绝的不会飞翔的水鸟,生活在白垩纪晚期。
Hesperornis is an extinct genus of flightless aquatic birds that lived during the Late Cretaceous.
昏鸟是一种已经灭绝的不会飞翔的水鸟,生活在白垩纪晚期。
Hesperornis was a speedy swimmer, taking short dives to feed on shoals of fish or other passing food.
它们是快速的游泳,进行短时间潜水来捕食鱼群和其他经过的猎物。
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