A family tree is a visual representation of a person's ancestry and lineage. It shows how individuals are related to one another, typically starting with a central person and branching out to include parents, grandparents, siblings, and other relatives. Each connection illustrates familial relationships, making it easier to understand one's heritage. Family trees can also include information about birthdates, marriages, and deaths, providing a comprehensive view of a family's history. They are often used for genealogical research, helping people trace their roots and discover more about their ancestors and cultural background.