What do you think of transplanting an animal heart into a human?

I think that it is so revolutionary technologies. Sometimes we face the emergency situation. For example, some patient comes to the hospital who has heart or blood of having get diseased. So, many doctors or experts search for another person\'s heart or blood for alternative purpose. But It doesn\'t have all that things. When that situation, if you have an animal\'s heart or blood, you have the second method of solution to an emergency situation. Surely we will feel sorry to animals, but Human has more smarter than animals and we have high technologies. I think that we have to use it and more advance. Even so nobody human in the world, we live in a world where the strong prey upon the weak. Thanks [이름]