We are an individual in nature and animals are too. “Humans do not have any right to use animals”, this message come from one of animal rights activists, and he works in World Society for the Protection of Animals (WSPA). As you know, with few exceptions, we do not experiment on human subject without their consent. We also do not do research on humans who are not able to give assent to experimentation. That is the reason why we should not research on animals. Although animals are just animals and they cannot give informed consent, they have the right to live and anybody does not take life of them. If we do that, it is an inhuman activity. Most of things are provided for science; however, we need another method to replace animal experiments.