Younger Brother Obsidian.
Older Brother Obsidian in black paint.
Tyrone Turner / National Geographic
Boston University archaeologist William Saturno carefully uncovers art and writings left by the Maya some 1,200 years ago. The art and other symbols on the walls may have been records kept by a scribe, Saturno theorizes. Saturno's excavation and documentation of the house were supported by the National Geographic Society.
