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If you haven't explored this website yet (www.hoyonegro.org) you need to!
Hoyo Negro, Mexico; An underwater cave in Mexico's Yucatán Peninsula contains human skeletal material believed to be among the oldest human remains discovered in the Americas.
Science edged closer on Sunday to showing that an antioxidant in chocolate appears to improve some memory skills that people lose with age.
Illustrations sketched on location at archeological sites throughout the Maya region.