インドネシア：4000年前の洞窟壁画？

下記の記事が出ている。

　40,000 year old Indonesian cave art may be humanity’s oldest
　ars technica: October 10, 2014
　http://arstechnica.com/science/2014/10/40000-year-old-indonesian-cave-art-may-be-humanitys-oldest/

　Indonesian cave art 'raises questions about early mankind': 40,000-year-old paintings are the oldest ever found in Asia
　Daily Mail: 8 October, 2014
　http://www.dailymail.co.uk/sciencetech/article-2785289/Indonesian-cave-art-raises-questions-early-mankind-40-000-year-old-paintings-oldest-Asia.html