Dama's homework

I think the experiments on animal are necessary, while animal right is also important.
The fact is, "human have much desire''. We have to produce agricultural and industrial substances, medicines as well as food additives to support our lives. I can imagine how pain those dog and mice suffer in the experiments. It's truly cruel, but without the beforehand experiments on animal, no one can guarantee how will the medicine effect on human body. However, we believe ourselves, the human kind, is the most precious species in the world.
It's difficult to make a choice between animal right and human's health. I think the most important thing is to develop a new technique which can prevent vivisection from any medical or chemical experiments.