BINANGONAN -- "On a small rock wall a short drive from Manila, enigmatic carvings that are believed to date back 5,000 years are in danger of disappearing before their mysteries can be solved. The 127 engravings of people, animals and geometric shapes are the country's oldest known artworks, but encroaching urbanization, vandals and the ravages of nature are growing threats. "Eventually they will disappear... preservation is out of the question," veteran anthropologist Jesus Peralta, who did an extensive and widely respected study of the carvings in the 1970s, told AFP. The artworks have been declared a national treasure, regarded as the best proof that relatively sophisticated societies existed in the Philippines in the Stone Age." http://www.abs-cbnnews.com/focus/04/20/14/angono-petroglyphs-danger-disappearing
When I read about the figures squatting, though, I thought it might have been an ancient comfort room or something?
They are really good at squatting in the Far East, saves the knees. I love the name used in the Philippines for the bathroom, comfort room sounds really pleasant, suspect the term comes from the US.