The author has carried out a comparison between the female/male ratio (x 100) in different age groups in the Nordic countries and Greenland. The ratio was much the same, about 95, up to the age 45-50 years. But there were two exceptions, the Faroe Islands and Greenland. Here the excess of males aged 20-49 years was much higher than in the other countries. In Greenland for this was mainly due to an immigration of adult males, and the female/male ratio was 75.4. Some possible influences on the society are discussed.