A new research study is being launched by ScotlandsDNA into the three different types of gene for red hair, with the specific purpose of discovering why Scotland has such an abundance of red headed people. Around 13% of people in Scotland have red hair, compared to a global figure of 1-2%. The researchers believe, however, that in Scotland alone there could be over one-and-a-half million. It is interesting to note that red hair can skip generations in the same family.
The aim of the research project is to accurately map the number of Scottish carriers of one of the three types of genes that can lead to red hair. The researchers are hoping to be able to establish a theory for Scotland being the most red-headed nation in the world.
The amount of emigration from Scotland throughout the centuries has clearly contributed to the global total of red headed people. It would be extremely interesting to expand the study to include genealogical data, although this is obviously outwith the scope currently.