Nowadays,hundreds of rats die in laboratories every single day in experiments carried out by scientists.In this sense,the mouse's contribution to the human race has outweighed their destruction to us,which makes me like them still more. 1212 Nowadays, hundreds of rats die in laboratories every single day in experiments carried out by scientists. In this sense, the mouse’s contribution to the human race has outweighed their destruction to us, which makes me like them still more