why do we have nails

Humans have nails primarily for protection, strengthening the fingertips and toes, enhancing fine motor skills, and aiding in precise tasks. Nails protect the delicate skin and tissues at the tips of fingers and toes from injury, provide a counter-force that helps with sensitivity and delicate movements, and act as tools for grooming and picking up small objects. Additionally, toenails help prevent injury to the toes and may assist with balance. Nails evolved from claws and are made of keratin, a tough protein found in hair and animal hooves. They support the fingertips, improve grip, and prevent damage to the nail bed, all important for our daily activities and survival.