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Experts stunned by remarkable sighting inside world's largest cave: 'We see big groups'

The cave features chambers wider than airplane hangars and skylights that support underground forests Experts stunned by ...
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The World's Largest Cave Has Its Own Climate System With Jungles, Rivers, and Clouds—and This Is the Only Way You Can See It

Highlights of the five-night trip include seeing the cave’s own rainforest and a calcite wall called the Great Wall of Vietnam. Vietnam is home to the world's largest cave. It's so vast that it has ...
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Ancient new shark species — dating back 340 million years — unearthed in world’s largest cave system

A rare bite into the past. The fossilized tooth of a newly discovered ancient shark species – dating back about 340 million years – has been unearthed in the world’s largest cave system, officials ...

Here’s why South Dakota is the ‘undisputed queen of maze caves’ in the U.S.

Aside from drawing more tourists, not much has changed at South Dakota ’s above-ground attractions such as Badlands National ...