Maya Artifacts Found In World's Largest Underwater Cave

Remains of giant sloths and proto-elephants were found interspersed with burnt human bones and ceramics in Mexico's Sac Actun cave system.

Last month, researchers from the Great Maya Aquifer Project announced the discovery of the world's largest underwater cave system in Yucatán after realizing that two massive cave systems in the Mexican peninsula were connected. Now, they're unveiling the findings to the public.

"This immense cave represents the most important submerged archaeological site in the world," underwater archaeologist and National Geographic explorer Guillermo de Anda told National Geographic in January when the newly discovered system was announced. "It has more than a hundred archaeological contexts, among which is evidence of the first settlers of America, as well as the extinct fauna and, of course, of the Maya culture."

Researchers say the water level in the 215-miles-long Sac Actun cave system

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