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yuan cheng fei xing da shi
Author(s): 
Pages: 20-23
Year: Issue:  3
Journal: Knowledge is Power

Abstract: 繁殖·使命伟大 SPECIRL REPORT 三月春分之后,白天越来越长,气温也越来越高.鄱阳湖的鸿雁开始蠢蠢欲动.它们前一年1 0月份从西伯利亚飞到这里,在宽广的湖面、湿地滩涂和附近的草地田野游荡觅食,度过了整个冬天.这时,千万年来沉淀在基因中的信号告诉它们,离开越冬地的时候要到了,它们结成十多只小群,冲上天空,向北方飞去.在一个多月内,鄱阳湖就有5万多只越冬的鸿雁和其他数十万只冬候鸟,再次回到它们来的地方,去完成它们延续种族的伟大使命——繁殖.
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