明年秋天,当你看到雁群一路以“V”字队形飞往南方越冬时,你也许会想到科学己经对这种飞行方式作了解释:鸟儿鼓动双翼时,为紧随其后的鸟儿形成了一种浮力。借助“V”字队形飞行,鸟群的飞行里程至少比孤雁单飞增加71%。 When you see a group of geese flew south to the south for winter, when you see the geese flew over the winter, you might have noticed that science has explained this way of flying: when birds move their wings, Subsequent birds formed a kind of buoyancy. With the “V” shaped fleet, flocks fly at least 71% more miles than solitary solitary goose.