The concept of ethnic groups is used in the social sciences to refer to the different sets of people that make up Humanity and who are responsible for the fact that human beings present notable differences among themselves, not only at the level of physical traits (for For example, skin color, eye color, hair type, physical build) but also on a cultural level (for example, religious practices, form of social organization, economic activities, etc.). Ethnic groups are very varied and although today the phenomenon of globalization tends to unite differences and make the elements typical of many ethnic groups disappear, those outstanding elements always maintain their distinction and give richness to human diversity.
The qualification of ethnic groups can be understood from both a biological and a social point of view. In this sense, the belonging of an individual to a certain ethnic group has to do with the information or data that they carry in their genes and that will inevitably cause them to be born with many physical and biological traits similar to those of their ancestors, for example a color dark skinned, a curly hair type, light eyes or short stature to put a few possibilities.
The social comes into the concept of ethnic groups when we talk about everything that human beings create that escapes nature and that makes up the identity of that group, for example religious forms and practices (official or pagan), the type of organization social (patriarchal or matriarchal), forms of entertainment or fun, gastronomy, language and different forms of communication, etc. All these elements also distinguish the different ethnic groups and set them against the others since they are their own elements that may or may not be shared by other ethnic groups. For example, the Irish have cultural elements more similar to the Spanish than the Chinese, but they are still different from each other.
