Why are studies made on rats?

Quora User

I think one of the reasons is that rats have a lot of similarities to us. We shared one of the earliest  mammal ancestor with them. So if we are testing for diseases and cures we test it on them before we test it on us. There might be other reasons. 

With regards to immorality,  i don't believe in the concept of morality. Immoral to who? The rats definitely have it rough because we are sacrificing them just so we can save future human beings from disease or death. If that's what you mean then yes it's immoral for the rats,  but it is arguable that it is a moral thing for us to do to improve our species. That's the problem with the concept of morality. What is moral depends on who you are representing.

Do you have a different answer that might help the questioner? How would you answer this question?

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