What do you think about this essay ?

Experiments on animals may not be ethical but they must not be prohibited . In fact , Science has made an outstanding leap since we started experimenting on animals and if we hadn't tested viruses on rats , we would have suffered from epidemic diseases such as polio and malaria for eternity and millions of lives would have been lost . Regardless of what some people are forcing themselves to believe , it is a fact that if our life is involved , we must not take care of smaller concerns . Also those who are against experiments on animals forget that we are consuming millions of animals every year for their lamb and exterminating millions of species for our comfort , and they focus on some hundreds of animals that are used to save humanity and make a better world . isn't that illogical ? and isn't it natural that we , humans , use animals like any animal would do to survive , we may be more rational than other animals but we are led by our survival instincts and no one can deny it . if a hungry animal gets an opportunity to kill you , he would certainly do , and we are just like any other animal , we are survivors !
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Thank you for reading

PS : i'm 17 and english is my third language .