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直击全世界最恶劣的12大生物入侵事件

2017-06-08 16:04:12   今日头条

10年前,水族爱好者无意间将狮子鱼引入加勒比海和美国东南海域。由于没有天敌存在,这一外来珊瑚物种的数量呈爆炸性增长趋势。为了保持生态平衡,罗丹国家公园的工作人员合作,训练鲨鱼捕杀入侵的狮子鱼。图为一头加勒比海礁鲨正在大肆咀嚼一只入侵的狮子鱼。

缅甸蟒现在对于美国佛罗里达州来说就是一种灾难。据政府部门估计,缅甸蟒已到达3万多条。而且他们天敌,就连鳄鱼也成为它们的食物,因此这一数据仍将有可能会继续增加。

斑马贝最初通过船只的压舱水溜入美国。数十年来,它们已经堵塞了管道。修理这些堵塞的管道总计耗费了数十亿美元。这些斑马贝不只附着于管道,还粘在发动机和其它当地贻贝上,肆虐船主,杀死大量野生动物。


蛇头鱼绝对是让人能做噩梦的生物。它们具有尖锐的鲨鱼状的牙齿,血液的胃口可以长到三英尺长,每年能食用7.5万个鸡蛋。甚至离开水面后还能存活4天。


2012年,奥巴马政府宣布,将斥资5150万美元,防止五大湖遭到亚洲鲤鱼入侵。在密西西比河,亚洲鲤鱼从本土鱼口中疯狂抢夺食物,被美国官方称之为“最危险的外来鱼种”。


地中海发现一种可怕的寄生虫,其外形与科幻电影中的外星人无异,它们“攻占”了鲷鱼的舌头,并一直呆在那里吸寄主的血。研究人员将其命名为“贝蒂”。它们从幼鱼的腮部游入鱼嘴,寄居在舌头的顶端,以血液为食。


2012年7月,广西的张先生在给小狗洗澡时,竟然被3条凶猛的鱼啃掉自己手掌上的一块肉。据渔政部门透露,攻击张先生的是食人鱼,是南美洲食肉的淡水鱼。

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