Why man is called a moving museum of vestigial organs?

Explanation

1. During the c ourse of evolution, some organs remain in organisms. For example appendix in the digestive system.
2 In human beings it has no role to play in the process of digestion.
3. But in herbivores like rabbit appendix play important role.
4. Such type of organs which are not useful in animal are called vestigial organs.
5. There are nearly 18 vestigial organs in human beings.
6. For example pinna, hair on skin, mammary glands in man, etc.
7. That's why human being is said to be a moving museum of vestigial organs.