科学与环境
Faded cave glyphs offer fresh clues to Teotihuacan's ancient writing system
In a shallow cave high on a cliff in Chalcatzingo, Mexico, scientists documented three red glyphs in the 1980s, but the paintings received relatively little attention. Fast forward to the present day, and researchers have returned to the cave to take a closer look at what the anc
Phys.org - latest science and technology news stories ·