Animals have been used for individual needs since the beginning of the emergence of human life. With the advance of technology, scientists established mechanisms that do not require animals to satisfy our hunger and dress properly. Although I agree that the usage of animals is not an obligation to produce many things, since humans rely heavily on drugs that can cure many diseases and the synthesis of these pills still necessitates mammal organisms, science needs further development to leave the mammal species behind. In this essay, I will explain how technology reduced the need for animals in various fields yet still needs more time for leaving the usage of animals completely behind.