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.
Building a wall out of cob. Cob, cobb or clom (in Wales) is a natural building material made from subsoil, water, some kind of fibrous organic material (typically straw), and sometimes lime.The contents of subsoil naturally varies and if it does not contain the right mixture it can be modified with sand or clay.ob is an English term attested to around year 1600 for an ancient building material that has been used for building since prehistoric times. The etymology of cob and cobbing is unclear but in several tenses means to beat or strike which is how cob material is applied to a wall.