Biology is a scientific discipline that examines all living things and their interactions with each other. Biology has such a large field of research that multiple interdependent sub-branches. In the most general, it can be examined under two main headings as Botany and Zoology. Today, many species face with the danger of extinction for various reasons. The solution is based on biology with other sciences. It is possible with biological science to create a healthier living space with ongoing biological applications. Beginning with the existence of life and cloning of the lamb called Dolly in the early 20th century and biologist knowledge with many important discoveries about the human being that is still going on today is a science that will continue as long as there is life.