Many scientists have been using anmals as an experiments = animals for experiments in the lab. I believe that this is seriously ruthless to animals which have their own life = lives.

For decades, scientists have made duplicated animals for experiments. For example, white mice in the lab are losing their lives because biologist = biologists use them with = to develop a new kind of medicine for human being = beings/humans. Even though it is for developing a new medicine for people, it can not be allowed.

Thus, I don't agree with testing animals as a calalyst to harmful experiments.