Ethnic groups. Montage illustration of the faces of people from different ethnic groups. The races shown are (with their labelling number): European Caucasian (1); north African (2); Indian (3); Malayan or south-east Asian (4); Mongoloid (5); North American Indian (6); Inuit or Eskimo (7); Australian aborigine (8); negro or central African (9); Xhosa or southern African (10); Hottentotte, a group that lived on Cape Horn, South Africa (11); Papuan from Papua Guinea. A number of ethnic groups show biological adaptions, such as height or skin tone, to their environment. However, the division of people into distinctly different races is largely arbitary. Image from 1886.