First Americans left their mark, but when?
New evidence about the age of ancient 'human' footprints in Mexico casts doubt on claims that humans really made them at all.
A new study, published in today's issue of the journal Nature, challenges a controversial claim made by an international team of researchers in July and suggests humans did not leave footprints in central Mexico some 40,000 years ago.
P.D.
Y ahora aunque les duela, los mexicanos tenemos la clave para lo que parece ser el origen del hombre.
México
Ciudad de México
domingo, diciembre 04, 2005
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