it is crude that people make experiment to animals for their beaty needs. in the situation, a human ear was grown in the back of mouse which it will die in advance. mouse is living creture, they have feeling and can feel painful. they even do not like be locked in a cage and seperated with their friends.there are some regulation was made to prevent animals from experiment. it will hurt them during a experiment. they are our friends, if people do not like looking strange, why they do that? they have the same right as human beings. human without ear can still hear songs, but when we cut the ear grown in mouse's back. it die. therefore i am against this kind of experiment.