Final answer:
Primates have unique traits such as opposable thumbs and prehensile hands and feet. Opposable thumbs allow for a power grasp and precision grip, enhancing dexterity. Prehensile hands and feet enable primates to grip and manipulate objects effectively.
Step-by-step explanation:
Primates have several unique traits that define the order. One of these traits is the presence of five digits, or fingers/toes, on each extremity. Unlike other mammals, primates have nails instead of claws and their fingers and toes are covered with sensitive tactile pads.
An important trait of primates is opposable thumbs. This means that the thumbs (and in many species, the big toes as well) can be brought into opposition with the other digits, allowing for both a power grasp and a precision grip. This trait enhances dexterity and the ability to manipulate objects.
Another trait of primates is prehensile hands and feet. Prehensile means capable of grasping or holding objects. Primates have specially adapted hands and feet that are capable of gripping and manipulating objects, such as branches, with a high degree of dexterity. This enables them to move and forage effectively in their arboreal (tree-dwelling) habitats.