Popular thinking tells us that the ice age covered Europe and everyone moved to Spain for the winter.
However, we now know that there were refuges in Siberia where mammoths and other animals survived in 'refuges' and a human skull was unearthed not so long ago.
Norway also had refuges where trees survived. With trees we get other vegetation, insects and I would suggest animals, including humans. Pollen from Iceland was also found so there may well have been a refuge there. A recent article has stated that volcanic activity in Antarctica helped animal life to survive there so there's every possibility that volcanic Iceland also had animal survivors.
Now it appears that Ireland had a refuge as a dna project has been done on the Irish mountain hare which proves that it is not related to other hares and must have survived in this Irish refuge. Apologies to all hareophobes at the mention of the word hare.
All genetic data seems to suggest that the Irish hare is more genetically divergent than previously thought. Observed levels of divergence and haplotypic diversity can not be explained by recent colonisation. Instead, the most parsimonious explanation is that the Irish hare survived the last glacial maximum in refugia possibly in the southern parts of Ireland and/or other areas further south now covered by water.
http://www.doeni.gov.uk/niea/irishhareg ... report.pdfAs we know the south of England escaped the ice that troubled the north and Scotland and it may be that even Doggerland escaped the ice. I can't see the ice free bit stopping at Norwich and not continuing across for a wee bit.
So perhaps there was a population of people still living in the south of Britain, as the Irish article points out sea level was much lower then so there was more land than there would be today. Perhaps they were all architects planning a Stonehenge kind of enterprise to impress the sunlovers when they returned from the Costas.
http://news.nationalgeographic.com/news ... vironment/http://sciencenordic.com/spruce-and-pin ... age-norwayhttps://www.newscientist.com/article/mg ... t-ice-age/