The teeth of mammals do not have the similar function to perform. They have different types, number and sizes of teeth that are equipped to perform different functions.
Example: Human beings have incisors,canines, molar and premolar. The incisors are used to cut the food and hold the food.
The canines are use to tear hard food such as meat. The molars and premolars are used to grind the food.
The writing of a person is controlled by an region located in the left part of frontal lobe of the brain which is known as the Broca's area.
Writing is a motor impulse send by the brain to the hand and fingers.
However, no two individual can have the same hand-writing.
This is because hand-writing is not only dependent on the brain to hand motor co-ordination.
It also depends upon the psychology, mentality, thought process, state of mind, nature of the person and also the influence of the surroundings on the person.
It also depends on the preference of the person to keep his writing artistic or simple or illegible.
All these factors can never match between two persons.
This is the reason, no two persons can share the exactly same hand-writing.
