Residents in the north-east are being asked to contribute their DNA for a major scientific study.
Researchers at Oxford University are attempting to create a genetic “map” of Britain and will be visiting Peterhead and Fraserburgh next week.
In 2008 staff from the university took blood samples from locals for the first phase of the project.
They are now looking for the same donors to come forward again so scientists can take a 3D scan of their faces to add to the database.
New volunteers are also being sought to give blood samples, which will be used for research into the role of genes in common diseases such as cancer and diabetes.
The genetic map will also enable experts to consider the impact the different historical invasions, such as those of the Vikings and Anglo-Saxons, around the British Isles.
Tammy Day from the department of oncology at Oxford said: “This time round we are studying the genetics of facial features and certain other individual differences between people.
“Instead of asking for a blood sample, we are asking our volunteers if we can take a 3D photograph of their face and hands, do a taste and smell test and answer a few questions.
“The study is anonymous and no data from photographs will be published that would allow an individual to be recognised.”
The team will be at Fraserburgh Old Parish Church from 9.30am-4pm on Tuesday, June 17, and from 9am-noon on Wednesday, June 18.
They will then move on to St Andrew’s Church, Peterhead, from 2pm-5pm on June 18 and from 9am-1pm on June 19.