Anthropology [anth-row-pahl-O-gee] is the study of human beings in the past and present. 
The word anthropology has two roots: [ anthrop- ] and [ -ology ]. Anthrop- means “about human beings,” and -ology means “a type of science." Anthropology is a type of science about human beings. A person who studies anthropology is called an anthropologist.

The main goal of anthropology is to answer the questions: What makes us human and why?

Anthropology is a biological and historical social science that helps us learn how groups of people are the same, and how they are different in all parts of the world. Anthropologists do research in many places and study how people live now and how they may have lived in the past. They research in modern cities, small villages, tribes, and in the countryside.

Four fields 

Anthropology uses a "four-field approach" that divides anthropology into four big kinds:
Archaeology - The study of how people lived in the past. 
Biological anthropology - The study of how people adapt to where they live and how bodies changed over time (evolution). 
Linguistic anthropology - The study of how people speak and the words they use. 
Sociocultural anthropology - The study of how people live their lives now and how they may have lived in the past. It combines social and cultural ideas about people.

Archaeology
Archaeology is the study of humans from the past. People who study archaeology are called archaeologists.

Archaeologists look at things that past people left behind to know how they lived.  They look at tools, bones, and past houses to see how people in the past are not the same as people that live today.

Here are some other examples of what archaeologists like to study:
 Historical_archaeology: the study of what people wrote down and talked about in the past
 Ethnoarchaeology: the study of people's things
 Experimental archaeology: tests different ways to study archaeology
 Community archaeology: makes sure that other people can help study anthropology
 Cultural resources management: studies the past cultures and arts of humans

Biological Anthropology 
Biological or physical anthropology studies human bodies and how they change over time.

They look at how humans live in nature and how their bodies change because of where they live. They also study how human beings and apes and monkeys are alike. Sometimes biological anthropologists study human and animal bones to learn about how past humans lived. They are also called physical anthropologists.

Here are some other examples of what biological anthropologists like to study:
 Paleoanthropology: the study of human bones from a very long time ago 
 Bioarchaeology: the study of human bones from the past (but not as long ago as paleoanthropology)
 Primatology: the study of monkeys and apes 
 Paleopathology: the study of human diseases from the past
 Human biology: the study of how human bodies work

Linguistic Anthropology 
Linguistics is the study of how people talk.

Linguistic anthropologists study sounds and how they go together to make words.  Then they study what the words mean and how people use them.  Linguistic anthropology also studies how language changes what people think and how people change language.  No two people talk the same way, so linguistic anthropologists want to know why that happens.

Here are some other examples of what linguistic anthropologists like to study:
 Languages: how people talk in different places
 Communication: how people tell each other things
 Socialization: how people learn languages when they are little
 Language ideology: how people feel about language
 Code-switching: when someone uses more than one language

Socio-Cultural Anthropology 
Socio-Cultural Anthropology is the study of human societies and cultures.

It looks at how human beings understand the world around them and how they act with the people around them. Socio-cultural anthropologists study living people by going to their homes and learning about who those people are and what they do. They write about people in places all over the world to see why people are different. Some socio-cultural anthropologists study medicine in these places and some look at how babies grow up in other places.

Here are some other examples of what socio-cultural anthropologists like to study:
 Witchcraft: the practice of magic
 Taboo: things that are not allowed
 Gender identity: what gender someone thinks they are
 Cultural materialism: how people and societies change
 Rites of passage: how people celebrate change, especially as someone gets older

Other Kinds of Anthropology 
Even though there are four main kinds of anthropology, there are a lot of different kinds of anthropology within the four main kinds. Here are some examples:
 Feminist Anthropology
 the study of women and anthropology. Feminist Anthropology is also used to study equal rights for women. 
 Forensic anthropology
 the study of humans and the law. 
 Processual archaeology
 uses science to study the history of humans and their things.
 Applied anthropology
 uses the different ways to study anthropology to answer questions.
 Anthropology of media
 the study of human dancing, music, and art.
 Medical anthropology
 the study of human health and how people use medicine around the world.
 Evolutionary anthropology
 the study of how human biology and culture has changed from the past to the present.

Rules of Anthropology
Like everything in life, anthropology has a set of rules that every anthropologist needs to follow. The rules try to make sure that no one gets hurt or mad when studying other people. Here are some of the rules:
 To make sure no one gets hurt when studying anthropology
 To respect and be nice to humans and animals 
 To make sure any items used to study people are well taken care of
 To work as a team

Notable people 

This is a list of important people who studied anthropology.
 Franz Boas (1858-1942)
 Boas is known as the "Father" of American anthropology because he helped spread anthropology throughout the United States. 
 He studied socio-cultural anthropology, biological anthropology, and archaeology.
 Claude Levi Strauss (1908-2009)
 Levi Strauss studied how humans think and act the same everywhere around the world. 
 Émile Durkheim (1858-1917)
 Durkheim studied how people in societies make new ideas and groups. 
 Bronisław Malinowski (1884-1942)
 Malinowski studied how people in different places act and how they are different from people in other places.
 Margaret Mead (1901-1978)
 Mead studied how there are different ways people raise babies and how those babies grow up. 
 Marcel Mauss (1872-1950)
 Mauss studied how different people use magic and how people give presents. 
 Alfred Radcliffe-Brown (1881-1955)
 Radcliffe-Brown studied how people put their lives in order in different places all over the world.

Notes
Charles Darwin, On the Origin of Species, 1861
Charles Darwin, The Descent of Man, and Selection in Relation to Sex, 1871
Thomas Henry Huxley, Man's Place in Nature, 1863
Rudolf Virchow, Anthropological Papers, 1891
Desmond Morris, The Naked Ape, 1967
Jane Goodall, In the Shadow of Man, 1971
Richard Dawkins, The Selfish Gene, 1976
E.O. Wilson, On Human Nature, 1979
E.O. Wilson, Consilience: the unity of knowledge, 1998
E.O. Wilson, The social Conquest of Earth, 2012
Jared Diamond, The Third Chimpanzee, 1991
Jared Diamond, Collapse: how societies choose to fail or succeed, 2005
 Richard Wrangham, Catching Fire: how cooking made us human, 2009
 Ulf Hannerz, Anthropology's World: life in a twenty-first century discipline, 2010
 James D. Faubion, An Anthropology of Ethics, 2011

References