Final answer:
Primates are mammals with long tails and flexible hands and feet. They have opposable thumbs and are divided into prosimians and anthropoids.
Step-by-step explanation:
Primates are a group of mammals with long tails and flexible hands and feet. They have five digits on each extremity, with opposable thumbs and, in some species, opposable big toes as well. These adaptations allow them to have a power grasp and precision grip. Primates also possess other characteristics such as a rotating shoulder joint, stereoscopic vision, and a trend toward holding the body upright. They are divided into two groups: prosimians and anthropoids.