Evolution
What is Evolution? Many people have proposed their hypotheses to explain evolution.  Darwin is considered the greatest evolutionist. According to Darwin's theory, all living things are descended from a single ancestor.  Darwin takes the example of a tree to describe evolution.  Darwin says that every living thing has the same base, like a tree. The main part of the tree is its trunk, from this trunk many branches emerge, and from these branches,e branches emerge.  But the main part is the trunk