Why i have knuckles?

Humans have knuckles for several reasons:

Grip: Knuckles provide increased friction and grip strength when holding objects. This is particularly important for primates and humans who use their hands for climbing, grasping tools, and performing various tasks.

Structural Support: Knuckles help distribute forces and stabilize the joints in the fingers and wrist. They provide additional bone mass to strengthen the hand and enable it to withstand loads during gripping, punching, and other activities.

Joint Flexibility: Knuckles allow for greater range of motion and flexibility in the fingers. The joints between the knuckles (known as metacarpophalangeal joints) can flex and extend, allowing for fine motor control and the ability to perform precise movements.

Evolution: Knuckles are a result of evolutionary adaptations in primates over millions of years. The development of longer fingers and opposable thumbs allowed for more sophisticated hand movements, which, in combination with knuckles, contributed to the success and survival of humans and their ancestors.

Protection: Knuckles provide some degree of protection for the delicate underlying structures such as tendons, ligaments, and blood vessels in the hand. Although not as protective as claws, knuckles can shield these structures from blunt force trauma during activities like throwing or punching.

The combination of these factors makes knuckles an important feature of the human hand, enabling us to perform a vast range of tasks, from grasping delicate objects to handling powerful tools.