Rock art in Sulawesi, Indonesia, as old as almost 40,000 yrs...! Babirusa (pig-deer) 35.4 ka and hand stencil 39 ka. Published in 2014 https://t.co/J44RFSraY1 pic.twitter.com/WDNVVfI8jp

— Roberto Sáez (@robertosaezm) June 28, 2018