The return of humans to the British Isles after the end of the last ice sheet, which covered much of the northern hemisphere, happened around 15,200 years ago – nearly 500 years earlier than previous estimates.
This movement of people coincided with a sharp rise in summer temperatures in southern Britain, research by our group shows.
These environmental conditions allowed humans to migrate back up into Britain – then still connected to the European mainland. They were hunting herds of reindeer and horses, which were migrating northwards into ecosystems that supported their preferred food for grazing.