Nonhuman animals are part of many facets of our lives. Many people rely on animals as part of food and subsistence systems, particularly in the areas of hunting, herding, and agriculture. Some people worship deities who are all or part animal. Many people recognize animals as symbols of clans or sports teams. For example, did your school have an animal as the mascot for its sports or debate teams? Across cultures, people love animals as pets and companions, and, as recognized by evolutionary theory, humans are connected to animals as ancestors and relatives. Animals are integral parts of the lives of humans around the world, in which they play a variety of roles. Defining an animal, however, can be complicated. With some exceptions, an animal is defined in science as a multicellular organism, either vertebrate or invertebrate, that can breathe, move, ingest and excrete food and food products, and reproduce sexually. This clearly also includes the human species. Western philosophical tradition supports this inclusion. The Greek philosopher Aristotle (384–322 BCE) grouped animals as being blooded (e.g., humans, mammals, birds, fish), non-blooded (e.g., shelled animals, insects, soft-skinned sea animals), or what he called dualizers, with mixed characteristics (e.g., whales, who live in the sea but have live births; bats, who have four legs but fly). Aristotle classified humans as animals with the intellectual ability to reason. In 1735, Swedish botanist Carolus Linnaeus introduced his binomial classification, which used two terms to identify every living organism: a genus and a species designation. In his work Systema Naturae (1735), Linnaeus divided the living world into two large kingdoms, the Regnum Animale (animal kingdom) and the Regnum Vegetabile (plant kingdom). Like Aristotle before him, Linnaeus classified humans as animals. Today, the scientific approach to the study of the animal kingdom accepts that there is a continuum between all living animal species with grades of difference between species. However, even though humans are animals, people across cultures define themselves as separate from animals. French anthropologist Claude Lévi-Strauss (1908–2009) argued that cultures universally define themselves in opposition to what they view as nature, a domain they define as outside or on the margins of human culture. Humans and human culture are typically seen as everything that is not nature or animal. This makes animals and nature very important concepts to human societies, because they shed light on how people think of themselves as human beings in the world. Lévi-Strauss famously said of animals that they are “good to think” (1963, 89), meaning that animals provide good ways for humans to think about themselves. Animals are used as symbols in all cultures, a sign of the human tendency to identify similarities and differences between ourselves and (other) animals. In all societies, culture plays an important role in shaping how people define animals. Cultures assign various meanings to animals; they are ancestral spirits or deities, companions, work animals, wild and dangerous creatures, and even objects on display in zoos or raised in factory farms for food. Think of American culture, which both loves and dotes on dogs as members of the family and raises pigs as a food commodity. In other cultures, dogs are considered a food species. Among the North American Lakota people, dog meat is considered a medicinal food (see Meyers and Weston 2020), and in Vietnam, specially designated restaurants serve dog meat as a male aphrodisiac (Avieli 2011). To further illustrate the blurring of boundaries between categories of animals, some species of pigs, such as the potbellied pig, are kept as family pets in the United States. How do cultures designate species as being one thing and not another? Figure 18.2 Potbellied pigs are kept as pets in some countries. Here, a pet pig is ready for a walk in her neighborhood. (credit: “Potbellied Pig!” by Eric Chan/flickr, CC BY 2.0) The study of group identity is central to anthropology. Different cultures distinguish what is animal from what is human by comparing “the other” with themselves. Sometimes called us versus them, we versus they, or even the Other, capitalized, this binary (two-component) comparison is a human tendency observed across cultures. It is common for cultural groups to distinguish between humans and nonhuman species and also to designate some humans as “other” and not as fully human—comparable to animals or even isolated parts of animals. In the Andes, indigenous Quechua and Aymara speakers refer to themselves as runa, meaning “people” or “humans.” Those who do not speak their languages and do not live in the Andes are, by extension, nonhuman and are typically referred to as q’ara, meaning literally “naked and bare,” referring to their lack of social ties and community (Zorn 1995). This distinction between those within the group and those without is common among Indigenous groups all over the world as well as within Western societies. Although the origin of the word frogs as an epithet (nickname) for the French is contested, it appears to have begun within France itself as a way of referring to people who lived in Paris and ate frog legs. By the late 18th century, however, frogs had begun to show up in English newspapers and other written sources as a pejorative, insulting term for all French people (Tidwell 1948). Not to be outdone, the French have traditionally referred to the English as rosbifs (roast beefs), a food common in English cuisine. Although these examples are relatively lighthearted, there is a dark side to human-animal imagery. In a recent book, German freelance journalist Jan Mohnhaupt (2020) examines the distorted relationships that some Nazi leaders had with animals. After coming to power in Germany in 1937, the Nazi state enacted many laws against the Jewish people, among them a 1942 law that made it illegal for Jewish people to own pets, while Nazi leader Adolf Hitler doted on his dog and military commander Hermann Göring kept lions as pets. Preventing them from having companion animals was yet another way in which the Nazis sought to dehumanize Jewish people. Human-animal relationships are important to our sense of selfhood. In this chapter, we will explore various cultures’ approaches to and understandings of nonhuman animals, including both living and symbolic animals, and the diverse ways in which humans interact with and think about these “other” beings.