Stonehenge’s construction crew came together from across Britain for some epic barbecues, a feat of social organization millennia before mobile phones made it easy for people to connect.

Now, new analysis of the fat-coated pottery left behind at the Durrington Walls settlement near Stonehenge is shedding some light on their culinary practices—and raising questions about what exactly these late Stone Age people were eating.

Durrington Walls was the likely home base for the builders of Stonehenge’s famous inner circle of stones. It was inhabited around the same time that the iconic features were added 4,500 years ago, and man-made avenues connect both sites to the River Avon.

Earlier investigations of the animal bones unearthed at Durrington Walls revealed that people