[Pharmboy]

"At least 10 skeletons appeared to be African, the researchers reported, and four had teeth with "unusually high" combinations of two isotopes of the element strontium. An isotope is a slight variation of a chemical element, with a different mass but otherwise the same as the basic element.

"In this case, the ratios of the isotopes strontium 87 and strontium 86 were consistent with those in the teeth and bones of people who were born and grew up in West Africa. A comparison with strontium measurements of people born in Mesoamerica showed no similarities with the four specimens."

[wolfcreek]

Being there was a meteor or asteroid impact in that very region of Mexico, seems to me there would be a higher concentration of these isotopes. This might skew the results of the tests.