Animal research is psychological research or any research is amongst the most debated topics. They argue that the animals, if they had enough intelligence and could speak for themselves, they would never be a part of any such experiment by choice. So, according to that perspective from every angle the psychological research which uses different kinds of animal subjects, always is unethical. So, there are many organizations that fight against the use of the animals in the psychological experiments. In all circumstances there is requirement for a well-planned consent letter from the person who is considered responsible for the animals.