Animal texting is inmoral?

Throw the years, medicine is evolving like technology. Everyday scientists try to create new medicines to help any life on Earth. But how they know if the medicines they create, help? So for that they use animals like an alternative for testing to know if the medicine really help or not. Animal testing or animal experimentation is the process of using non-humans for the purpose of experimentation. For example, scientists use animal testing to determine the effectiveness and side effects of potentially new medicines to help decide if these medicines are safe for people. But we should know the advantages, disadvantages, and also some important facts about this.
The most obvious advantage of animal testing is for medical experimentation. Advancements in medicine help people, animals, and even plants. Unfortunately, the best way to test potentially new medicines is through animal testing, and if initially successful, then by human testing too. Also animal testing and experimentation is an excellent source to increase scientific knowledge, for example they use also biopsies in schools to teach about biology. It is considered more humane to do medical testing on animals first, then on humans first, for the obvious reason that human life is considered more precious than animals. Additionally, new medicines can also help animals too, but as we know, not all the people support this idea.
Animals undergoing testing can be subjected to torture and suffering. Alternatively in some cases, some animals may be even cured of their diseases during the process of animal testing. Animals can, and sometimes often, die in the process of animal testing. Although animals are kind of similar with humans, they are not really the same so animals are different than people, so their testing results are not always useful or practical for human comparisons. Therefore, if the usefulness of animal testing is in question, then animal testing should be reconsidered.
Modern anesthetics, the