The term Symplesiomorphy was introduced by a German scientist named Will Hennig. Symplesiomorphy is a type of special property developed by different groups of organisms, resulting in the presence of common ancestry between groups. In other words “An ancestral trait which is shared by two or more taxa” Symplesiomorphy is a scientific word, which helps to understand the aspects of different kinds of species and their ancestors. There are thousands of species in the world that keep increasing their generation continuously.