Archaeologists discovered clusters of red ocher drawings scattered on rocks and cliffs across Canaima National Park—and have some theories on who made the mysterious art.

Amazon Rainforest Inhabitants Lived Alongside Ice Age Creatures, Researchers Find Rock Paintings of Now-Extinct Animals In ...

Years of experiments at rock art sites in Finland have revealed that the echoes produced by smooth cliff faces may have influenced the neolithic people in that area. The artists behind the rock art ...