Archaeologists find fossils, Mayan relics in giant underwater cave in Mexico

Archaeologists who have been exploring the world's largest underwater cave -- recently discovered in Mexico -- presented their findings Monday, including fossils of giant sloths and an elaborate shrine to the Mayan god of commerce. Researchers discovered last month that two large networks of underwater caves in Mexico's Yucatan peninsula, the Sac Actun and Dos Ojos networks, are in fact connected, forming the largest such structure on Earth. Diving with SCUBA gear, they have been exploring the ancient relics left in the caves over the millenia, in a project sponsored by Mexico's National Institute of Anthropology and History (INAH).
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