Final answer:
Primates are characterized by distinct physical features, including five fingers, teeth, an opposable thumb, and a large brain. They also have adaptations for climbing trees and stereoscopic vision.
Step-by-step explanation:
Primates including human beings are characterized by a number of distinct physical features that distinguish them from other mammals. These include five fingers, several types of teeth, an opposable thumb, and a large brain. Other characteristics of primates are adaptations for climbing trees, such as a rotating shoulder joint, a big toe separated from the other toes (except humans), and stereoscopic vision.