Ethnic groups are communities of people who share common cultural traits, such as language, religion, traditions, and ancestry. These groups often have a shared history and identity, which can influence their social practices and values. Examples of ethnic groups include the Han Chinese, Hispanics, and Maasai. The concept of ethnic groups is important in understanding human diversity and social dynamics. Ethnic identity can shape individuals' experiences and interactions within society. Additionally, the recognition of various ethnic groups can promote cultural awareness and appreciation, contributing to social cohesion and respect among different communities.