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John Pohlman and David Brankovits dive into underwater caves to study organisms that feast on methane in total darkness. Plummet into a labyrinth of sinkholes and tunnels in the Yucatan Peninsula and see what it takes to collect untapped data.

Experience intense, unique, and sometimes dangerous moments with scientists working in the field, as they explain first-hand the kinds of risks they take to find answers. There’s so much more to being a scientist than being stuck in a lab. Watch every Wednesday for new episodes of Science in the Extremes.

Diving Into the ‘Twilight Zone’ to Save a Vanishing World

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Cave Diver Reveals Earliest American Rare Creatures: Photos…
“In 2007 divers mapping the underwater caves on Mexico’s Eastern Yucat√°n Peninsula, about 12 miles north of the city of Tulum, stumbled into a very large chamber. “The floor disappeared under us, and we could not see across to the other side,” Alberto Nava of Bay Area Underwater Explorers, told Discovery News. They named the pit Hoyo Negro (Spanish for Black Hole).”

Deepest Underwater Cave Discovered…
“Polish explorer Krzysztof Starnawski, who led the team, first explored the cave — named Hranick√° Propast and located near the Czech town of Hranice — in 1999, and instantly knew it was an unusual find. He told National Geographic, which sponsored his most recent expedition, that hot water saturated with carbon dioxide bubbled up like a volcano, and made his exposed skin itch.”

Bones in Submerged Cave May Be Earliest Native American…
“The girl skeleton found by divers in Mexico’s Eastern Yucatan Peninsula is 12-13,000 years old and shows a genetic link to modern Native Americans.”

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Written By: Anna Campbell