说起“老鼠”这种动物我们的第一反应就是让人感到讨厌，生活在下水道中，吃着各种腐败的东西，个头小，最大的天敌是猫，但是近日来在某大学发现了一只基因变异的“大家伙”体重十余斤的老鼠，我想大家一定没见过吧...
speaking of "mouse" this kind of animal we first reaction is to let people feel hate, life in the sewers, eating all kinds of corruption, small size, the biggest enemy is a cat, but recently in a university found a gene variant of the "big guy" weight more than 10 pounds of mouse, I think we must not have seen it...
