Hard layers of modified and keratinised skin cells, bonded together, to form a protective plate on the end of each finger and toe, that prevents damage to the underlying bone and allows for manual dexterity.
Tấm móng

Hard layers of modified and keratinised skin cells, bonded together, to form a protective plate on the end of each finger and toe, that prevents damage to the underlying bone and allows for manual dexterity.