4.5.2 Primate Behavioral Variation

Anthropologists regularly ask, “What makes us human?” Comparative studies of humans with nonhuman primates help answer this question. Comparing the behavior of nonhuman primates and the behavior of human beings helps anthropologists identify what culture is and develop operational definitions for it. Without the comparative perspective provided by primatology, anthropologists would be missing an important piece of the puzzle of what makes humans human. Without primatology, anthropologists would not be able to fully understand humankind.

Studying nonhuman primates in their environment is key to understanding variations in behavior and can shed light on humanity’s ancient past. Primatologists are studying the chimpanzees at Gombe National Park in Tanzania, where they live in the rainforest. The behavior of chimpanzees that live in the tropical regions of Africa is quite different from the behavior of chimpanzees that live in the savanna at Fongoli in Senegal, in West Africa. Gombe chimps hunt red colobus monkeys without the use of tools, just catching them with their hands, while the Fongoli chimpanzees hunt galagos (also known as bush babies) using sticks that they adapt and used as spears (Pruetz, J.D, et al, 2015). The two environments also show differences in gender roles with both males and females in the Fongoli savannah group involved in hunting while only male chimpanzees hunt in the rainforests. Studying how these nonhuman primates both make and use tools is critical for understanding how humans’ fossil ancestors may have used and constructed tools.

An important question that primatologists and biological anthropologists seek to answer is the question, do nonhuman primates have culture? Whenever we see an exchange of ideas where one individual is involved in teaching another and when that knowledge is passed on to others in a group is according to anthropologists, a form of culture. We see this happen in chimpanzee groups where older chimpanzees teach the young how to use sticks to termite-fish, the process of extracting termites from a termite mound using a stick.