Ancestry testing is a scientific method used to determine an individual's genetic heritage and family history. By analyzing DNA samples, typically collected through a cheek swab or saliva, these tests can reveal information about a person's ethnic background and ancestral origins. Many companies offer ancestry testing services, providing insights into where one's ancestors may have lived and how they migrated over time. The results of ancestry tests can also connect individuals with distant relatives who share similar genetic markers. This can lead to discovering new family connections and understanding one's place within a broader family tree. Popular ancestry testing companies include AncestryDNA, 23andMe, and MyHeritage.