Hi, now I'm going to talk about the scientific evidence in animals and give arguments for and against this option.
Animal testing can be very beneficial for the future of animals and nature, there are many interesting tests but one that is the most beneficial of transgenic animals, injected a virus into the gene to be incorporated into animal and an animal creates bigger and healthier.
Others say that these tests can be very good but they are very harmful to the animals exposed to the test. They say they can be beneficial but reaffirms that can have side effects for animals.
In short, my opinion is that before any test, you should investigate if there is a negative effect, if all is well then you can do all beneficial to the animals tests.