Complex sentence: Bark was removed by making deep cuts in a tree with a stone axe, the area of bark removed is typically regular in shape, often with parallel sides and slightly pointed or rounded ends and the scar usually stops above ground level.
Split into simpler sentences: Bark was removed by making deep cuts in a tree with a stone axe. The area of bark removed is typically regular in shape, often with parallel sides and slightly pointed or rounded ends, and the scar usually stops above ground level.