1.4.1 What is Biological Anthropology?

Biological anthropology is the study of human origins, evolution, and variation. Some biological anthropologists focus on our closest living relatives, monkeys and apes. They examine the biological and behavioral similarities and differences between nonhuman primates and human primates (us!). For example, Jane Goodall has devoted her life to studying wild chimpanzees (Goodall 1996). When she began her research in Tanzania in the 1960s, Goodall challenged widely held assumptions about the inherent differences between humans and apes. At the time, it was assumed that monkeys and apes lacked the social and emotional traits that made human beings such exceptional creatures. However, Goodall discovered that, like humans, chimpanzees also make tools, socialize their young, have intense emotional lives, and form strong maternal-infant bonds. Her work highlights the value of field-based research in natural settings that can help us understand the complex lives of nonhuman primates.

Other biological anthropologists focus on extinct human species, asking questions like: What did our ancestors look like? What did they eat? When did they start to speak? How did they adapt to new environments? In 2013, a team of women scientists excavated a trove of fossilized bones in the Dinaledi Chamber of the Rising Star Cave system in South Africa. The bones turned out to belong to a previously unknown hominin species that was later named Homo naledi. With over 1,550 specimens from at least fifteen individuals, the site is the largest collection of a single hominin species found in Africa (Berger, 2015). Researchers are still working to determine how the bones were left in the deep, hard to access cave and whether or not they were deliberately placed there. Here is a short National Geographic clip that discusses this. They also want to know what Homo naledi ate, if this species made and used tools, and how they are related to other Homo species. Biological anthropologists who study ancient human relatives are called paleoanthropologists. The field of paleoanthropology changes rapidly as fossil discoveries and refined dating techniques offer new clues into our past.

Other biological anthropologists focus on humans in the present including their genetic and phenotypic (observable) variation. For instance, Nina Jablonski has conducted research on human skin tone, asking why dark skin pigmentation is prevalent in places, like Central Africa, where there is high ultraviolet (UV) radiation from sunlight, while light skin pigmentation is prevalent in places, like Nordic countries, where there is low UV radiation. She explains this pattern in terms of the interplay between skin pigmentation, UV radiation, folic acid, and vitamin D. In brief, too much UV radiation can break down folic acid, which is essential to DNA and cell production. Dark skin helps block UV, thereby protecting the body’s folic acid reserves in high-UV contexts. Light skin evolved as humans migrated out of Africa to low-UV con texts, where dark skin would block too much UV radiation, compromising the body’s ability to absorb vitamin D from the sun. Vitamin D is essential to calcium absorption and a healthy skeleton. Jablonski’s research shows that the spectrum of skin pigmentation we see today evolved to balance UV exposure with the body’s need for vitamin D and folic acid (Jablonski 2012). For more information regarding Jablonski’s work please review The Evolution of Skin Color website.

1.4.2 What does it mean to be an archaeologist? What is material culture?

Take a look around you, chances are you are surrounded by “stuff”. From the clothing you are wearing to the screen you are staring at and the vessel from which you are drinking, much of our culture plays out in the material world in some form. After all, it is this stuff or what anthropologists call material culture which separates us from other living things on earth. Now picture if all that was left of your existence is the stuff surrounding you. This is the situation that archaeologists often face when trying to examine culture. Archaeologists focus on the material past: the tools, food, pottery, art, shelters, seeds, and other objects left behind by people. Prehistoric archaeologists recover and analyze these materials to reconstruct the lifeways of past societies that lacked writing. They ask specific questions like: How did people in a particular area live? What did they eat? Why did their societies change over time? They also ask general questions about humankind: When and why did humans first develop agriculture? How did cities first develop? How did prehistoric people interact with their neighbors? The method that archaeologists use to answer their questions is excavation—the careful digging and removal of dirt and stones to uncover material remains while recording their context. Archaeological research spans millions of years from human origins to the present. For example, British archaeologist Kathleen Kenyon (1906-1978), was one of few female archaeologists in the 1940s. She famously studied the city structures and cemeteries of Jericho, an ancient city dating back to the Early Bronze Age (3,200 years before the present) located in what is today the West Bank. Based on her findings, she argued that Jericho is the oldest city in the world and has been continuously occupied by different groups for over 10,000 years (Kenyon 1979).

Historical archaeologists study recent societies using material remains to complement the written record. The Garbage Project, which began in the 1970s, is an example of a historic archaeological project based in Tucson, Arizona. It involves excavating a contemporary landfill as if it were a conventional archaeology site. Archaeologists have found discrepancies between what people say they throw out and what is actually in their trash. In fact, many landfills hold large amounts of paper products and construction debris (Rathje and Murphy 1992). This finding has practical implications for creating environmentally sustainable waste disposal practices.

In 1991, while working on an office building in New York City, construction workers came across human skeletons buried just 30 feet below the city streets. Archaeologists were called in to investigate. Upon further excavation, they discovered a six-acre burial ground, containing 15,000 skeletons of free and enslaved Africans who helped build the city during the colonial era. The “African Burial Ground,” which dates from 1630 to 1795, contains a trove of information about how free and enslaved Africans lived and died. The site is now a national monument where people can learn about the history of slavery in the U.S.^[1]

1.4.3 What is Linguistic Anthropology?

Language is a defining cultural trait of human beings. While other animals have communication systems, only humans have complex, symbolic languages—over 6,000 of them! Human language makes it possible to teach and learn, to plan and think abstractly, to coordinate our efforts, and even to contemplate our own demise. Linguistic anthropologists ask questions like: How did language first emerge? How has it evolved and diversified over time? How has language helped us succeed as a species? How can language convey one’s social identity? How does language influence our views of the world?

If you speak two or more languages, you may have experienced how language affects you. For example, in English, we say: “I love you.” But Spanish speakers use different terms—te amo, te adoro, te quiero, and so on—to convey different kinds of love: romantic love, platonic love, maternal love, etc. The Spanish language arguably expresses more nuanced views of love than the English language.

One intriguing line of linguistic anthropological research focuses on the relationship between language, thought, and culture. It may seem intuitive that our thoughts come first; after all, we like to say: “Think before you speak.” However, according to the Sapir-Whorf Hypothesis (also known as linguistic relativity), the language you speak allows you to think about some things and not others. When Benjamin Whorf (1897-1941) studied the Hopi language, he found not just word-level differences, but grammatical differences between Hopi and English. He wrote that Hopi has no grammatical tenses to convey the passage of time. Rather, the Hopi language indicates whether or not something has “manifested.” Whorf argued that English grammatical tenses (past, present, future) inspire a linear sense of time, while Hopi language, with its lack of tenses, inspires a cyclical experience of time (Whorf 1956).

Some critics, like German-American linguist Ekkehart Malotki, refute Whorf’s theory, arguing that Hopi do have linguistic terms for time and that a linear sense of time is natural and perhaps universal. At the same time, Malotki recognized that English and Hopi tenses differ, albeit in ways less pronounced than Whorf proposed (Malotki 1983). Other linguistic anthropologists track the emergence and diversification of languages, while others focus on language use in today’s social contexts. Still others explore how language is crucial to socialization: children learn their culture and social identity through language and nonverbal forms of communication (Ochs and Schieffelin 2012).

1.4.4 Applied Anthropology

Applied anthropology involves the application of anthropological theories, methods, and findings to solve practical problems. Applied anthropologists are employed outside of academic settings, in both the public and private sectors, including business or consulting firms, advertising companies, city government, law enforcement, the medical field, non governmental organizations, and even the military.

Applied anthropologists span all four of the subfields. An applied archaeologist might work in cultural resource management to assess a potentially significant archaeological site unearthed during a construction project. An applied cultural anthropologist could work at a technology company that seeks to understand the human-technology interface in order to design better tools.

Medical anthropology is an example of both an applied and theoretical area of study that draws on all four subdisciplines to understand the interrelationship of health, illness, and culture. Rather than assume that disease resides only within the individual body, medical anthropologists explore the environmental, social, and cultural conditions that impact the experience of illness. For example, in some cultures, people believe illness is caused by an imbalance within the community. Therefore, a communal response, such as a healing ceremony, is necessary to restore both the health of the person and the group. This approach differs from the one used in mainstream U.S. healthcare, whereby people go to a doctor to find the biological cause of an illness and then take medicine to restore the individual body. Trained as both a physician and medical anthropologist, the late Paul Farmer demonstrates the applied potential of anthropology. During his college years in North Carolina, Farmer’s interest in the Haitian migrants working on nearby farms inspired him to visit Haiti. There, he was struck by the poor living conditions and lack of health care facilities. Later, as a physician, he would return to Haiti to treat individuals suffering from diseases like tuberculosis and cholera that were rarely seen in the United States. As an anthropologist, he would contextualize the experiences of his Haitian patients in relation to the historical, social, and political forces that impact Haiti, the poorest country in the Western Hemisphere (Farmer 2006). He died in February 2022, but his academic writing and his activism in the world live on through the people he has inspired and the work of Partners in Health, a nonprofit organization that he co-founded. He helped open health clinics in many resource-poor countries and trained local staff to administer care. In this way, he applied his medical and anthropological training to improve people’s lives.