Thousands of rock paintings dating back to the Ice Age discovered in the Amazon

Tens of thousands of paintings in red ocher dating to the last Ice Age, discovered in Colombia on a rock face that stretches for 13 km, shed light on the inhabitants of the Amazon and its incredible megafauna of more than 12.000 years ago. The "Lost Civilization" theorized by Colonel Percy H. Fawcett, which until a century ago seemed like science fiction, seems more and more real.