TULUM, MEXICO—Telesur reports that researchers from Mexico’s National Institute of Anthropology and History have discovered a route through underwater limestone caves connecting the Sac Actun cenote and the Dos Ojos cenote. Maya pottery, human bones, and the bones of elephant-like creatures, giant sloths, bears, tigers, and extinct species of horses have been found in the tunnel-like caves, which range in width from 400 feet to just three feet. “This immense cave represents the most important submerged archaeological site in the world,” said Guillermo de Anda, director of the study. It is not yet clear how the Maya artifacts came to rest in the caves. To read about another recent discovery in Mexico's cenotes, go to “Where There’s Coal….”