Skulls from the Yucatán Peninsula a Clue to Early American Settlers

The crania of individuals who lived in the Yucatán Peninsula during the late Pleistocene show a high degree of anatomical diversity among them, and their skull shapes differ from that of other North American populations of the time.

Written byAlejandra Manjarrez, PhD
| 8 min read
ixchel chan hol cenote cave skulls skeletons human remains ancient north american settlers mexico speleology

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ABOVE: Underwater speleologist Jerónimo Avilés dives inside the Chan Hol cave in Quintana Roo, Mexico.
EUGENIO ACEVEZ

Each year, more than 1 million people visit Xplor, a subaquatic theme park located a few kilometers south of Playa del Carmen, a popular tourist town on the Caribbean coast of southeast Mexico. Visitors swim in submerged caves, tear through the jungle in all-terrain vehicles, and zip line on hammocks—all of them likely oblivious to the human remains locked away in a laboratory on site and the scientists who are scrutinizing those remains for clues to the people and animals that lived in this very region around 10,000 years ago.

This field laboratory, associated with the Museo del Desierto in Coahuila, Mexico, is led by Jerónimo Avilés, an underwater speleologist and director of the Instituto de la Prehistoria de América AC. It’s the first place where items from underwater archaeological discoveries by his team ...

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  • alejandra manjarrez

    Alejandra Manjarrez is a freelance science journalist who contributes to The Scientist. She has a PhD in systems biology from ETH Zurich and a master’s in molecular biology from Utrecht University. After years studying bacteria in a lab, she now spends most of her days reading, writing, and hunting science stories, either while traveling or visiting random libraries around the world. Her work has also appeared in Hakai, The Atlantic, and Lab Times.

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