Colossal petroglyphs could be ancient boundaries, research suggests

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific developments and more. Ancient petroglyphs in what is now South America – believed to be among the largest in the world – were intended to mark the boundaries of the areas inhabited by their creators, according to a … Read more

Colossal petroglyphs could be ancient boundaries, research suggests

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific developments and more. Ancient petroglyphs in what is now South America – believed to be among the largest in the world – were intended to mark the boundaries of the areas inhabited by their creators, according to a … Read more

Mysterious symbols found near footprints shed light on ancient people’s awareness of dinosaurs, scientists say

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific developments and more. Prehistoric people in Brazil carved drawings into rocks next to dinosaur footprints, suggesting they may have found them meaningful or interesting, a new study finds. The petroglyphs, which archaeologists call petroglyphs, are located at a … Read more

Strange prehistoric drawings found near dinosaur footprints in Brazil

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific developments and more. Prehistoric people in Brazil carved drawings into rocks next to dinosaur footprints, suggesting they may have found them meaningful or interesting, a new study finds. The petroglyphs, which archaeologists call petroglyphs, are located at a … Read more