Final answer:
Studying primate behavior provides insights into human intelligence, technology, and culture. It helps anthropologists understand what makes humans human and sheds light on humanity's ancient past.
Step-by-step explanation:
Studying primate behavior provides insights into the origins of human intelligence, technology, and culture. By studying nonhuman primates, researchers gain a better understanding of what it means to be a primate and what it means to be human. Comparative studies of nonhuman primates and humans help anthropologists identify and define culture, which is a crucial part of understanding what makes humans human. Additionally, studying nonhuman primates in their environment helps us understand variations in behavior and can provide insights into humanity's ancient past.