Coles became a
lecturer in
prehistoric archaeology at the
University of Exeter in 1972. Her work studying Doggerland began in the 1990s. Coles named
Doggerland after
Dogger Bank, a large sandbank in the southern North Sea. In 1998, Coles produced hypothetical maps of the area. Her 1998 article,
Doggerland: a Speculative Survey, is described by the archaeologist Luc Amkreutz as "essential" to making Doggerland a serious subject of study. As well as research into Doggerland, Coles has also done extensive research into
wetland archaeology, particularly in the
Somerset Levels alongside her husband,
John Coles. Their work with the Somerset Levels Project resulted in the establishment of a new branch of archaeology focusing on wetlands and in 1998, they received the
Imperial Chemical Industries (ICI) Award for the best archaeological project offering a major contribution to knowledge. Coles began also studying the
European beaver after realising that a series of distinctive marks on preserved wood found in the Somerset Levels were made by beavers and not humans as first assumed. She mapped out the activities of beavers in
Brittany for around 5 years so that she could learn how to see signs of beavers in the environment and to help differentiate between beaver and human activity in any future archaeological sites. ==Personal life==