First, they are using animals for their scientific research. It is necessary for progress humanity. Usually scientists use mouse. Because mouse's DNA similar to human's DNA. Also they use animals for experiment in a very far laboratory from people cities and villages. Some things are too dangerous for human. If something was wrong they would kill animals. That's why scientists are using animal. It is first reason.
Second, scientists will make new drugs, but first they need try it for safety or dangerous and they use animals. Also, scientists are using a lot of money for their scientific research. And they buy animals and laboratory utensils with that moneys. Scientists make a new thing and use animals for their scientific research. If it is successful, They will share it with people. And it is second reason.
Final, Scientists are using animals for their scientific research and it is good. why? Because human are valuable than animals. In conclusion world has a lot of disease and people need cures. That's why scientist have to scientific research. But first they need try it for people. For this reason scientists are using animals for their scientific research.
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