Archaeologists have analyzed the DNA of a unique child burial at the precontact Mexican site of Paquimé, suggesting it is a rare example of close relative mating between elites for ritual sacrifice. Archaeologists have analyzed the DNA of a unique child burial at the precontact Mexican site of Paquimé, suggesting it is a rare example of close relative mating between elites for ritual sacrifice. Archaeology Phys.org – latest science and technology news stories