As one might imagine, the chances of coming across a find such as this is extremely rare, after all we’re not talking about some fossil, but one of the oldest walks of fame ever. Only those at Laetoli in Tanzania at about 3.5 million years and at Ileret and Koobi Fora in Kenya at about 1.5 million years are older. If this wasn’t enough, weren’t for the researchers’ keen eye on the site who were there for a completely different matter – a regular geological survey – just two weeks later the tide would have eroded the prints away forever.
“At first we weren’t sure what we were seeing,” explains Dr Nick Ashton of the British Museum “but as we removed any remaining beach sand and sponged off the seawater, it was clear that the hollows resembled prints, and that we needed to record the surface as quickly as possible.”
The team of researchers studied the shallow prints using photogrammetry, a technique that can stitch together digital photographs to create a permanent record and 3D images of the surface. The analysis eventually confirmed that the prints indeed were of ancient human origin, a mix of both adults and children. In some cases the heel, arch and even toes could be identified, equating to modern shoes of up to UK size 8.