Population Genetics. Population genetics is a field of biology that studies the genetic composition of biological populations, and the changes in genetic composition that result from the operation of various factors, including natural selection.
Walls, known locally as Waas, (Old Norse: Vagar = Sheltered Bays (voes) - the Ordnance Survey added the ll as they thought it was a corruption of walls. Cf Vagar vÃ¡gar And vagur vÃ¡gur In The), faroe islands is a settlement on the south Side Of, West Mainland shetland Islands. in scotlandne of its old names is  Vagaland , hence the name of the local poet. A pier was built at Walls in the 18th century, and from 1838, it was a center for fish curing. Walls itself is a quieter place than once it was.
Hadrianâs Wall, continuous Roman defensive barrier that guarded the northwestern frontier of the province of Britain from barbarian invaders. The wall extended from coast to coast across the width of northern Britain; it ran for 73 miles (118 km) from Wallsend (Segedunum) on the River Tyne in the east to Bowness on the Solway Firth in the west.