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鱼缸里的鱼追鱼是什么原因
更新时间: 2020-11-10 00:00:00  

鱼缸里的鱼追鱼是鱼要开始产卵了,前面的估计是雌鱼,后面的是雄鱼。

鱼类是体被骨鳞、以鳃呼吸、通过尾部和躯干部的摆动以及鳍的协调作用游泳和凭上下颌摄食的变温水生脊椎动物,属于脊索动物门中的脊椎动物亚门,一般人们把脊椎动物分为鱼类(53%)、鸟类(18%)、爬行类(12%)、哺乳类(9%)、两栖类(8%)五大类。

关键词: 鱼缸 什么 原因

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