Debates whether it is justifiable to use animals in medical research has been around for many years, yet still hasn't came up with any mutual agreement. Animals has been a subject for medical research for many centuries. With the establishment of human rights law across the world, it's getting more difficult to justify human- based research as it contradicts the principle of human rights. Concern regarding fragility of human based research is the main reason since human based research is still considered as a life- threatening method to human. On the other hand, there is no such thing as 'animal rights' established and acknowledge globalize yet. There are several animals, such as mammals, share the typical body characteristic as human does. These animals often be used as the experiment subject in medical research, even if the main purpose of the experiment product is for human in the end. Given this condition, many scientist around the world would rather choose animals for their ...