Linear micro-scratches within the grooves of the engraving indicated that it was carved by humans ... rolling into the cave through gravity. It aligns neatly against the wall with its uncarved ...

"After testing the wall of the cave, leaving traces with his fingers, the artist carved the first animal figures, which were followed by others superimposed over them," said researcher Valerie ...

"After testing the wall of the cave, leaving traces with his fingers, the artist carved the first animal figures, which were followed by others superimposed over them," said researcher Valerie ...

“After testing the wall of the cave, leaving traces with his fingers, the artist carved the first animal figures, which were followed by others superimposed over them,” said researcher Valerie ...