After about 8000 years of glacial retreat, the ice caps finally reached their present limit, and new water levels created many modern geographic divisions (such as that separating the British Isles from the rest of mainland Europe around 6000 BC).
Forest spread across the continent, limiting human mobility, and animals that Paleolithic hunters had hunted vanished or moved north for pasturage. In the Mesolithic era, dogs were domesticated, bows were developed for hunting, and canoes were used for transportation.
The arts underwent the most significant shifts in the Mediterranean region, where climate change had the least impact. Animal outlines can be seen on a Sicilian rock face that dates back to around 8000 BC or so. Naturalistic human figures, each between 10 and 15 inches (25 and 38 centimetres) in height and engraved with the same degree of realism as the animals accompanying them.
These bare bottoms are athletically lithe, with a clean outline that conveys both muscle definition and fluid movement. No earlier art has depicted human figures that are as anatomically correct or graceful as those found in the early historic period. It’s been suggested that the group of men standing in animal masks with two bound men at their feet is part of some sort of initiation rite or execution, but no one knows for sure what it represents.