Mammoth Cave National Park, home to the world’s longest known cave system, stretches for more than 680 kilometres, and counting, into the Earth. What began as a limestone labyrinth has turned out to ...
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World’s longest underwater cave system runs 524 km, dwarfing Grand Canyon
The world’s longest underwater cave system now stretches an astonishing 524 Kilometers, a hidden labyrinth that, in raw ...
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Experts stunned by remarkable sighting inside world's largest cave: 'We see big groups'
A cave once known only to hunters and explorers is now helping to stabilize livelihoods for communities in central Vietnam, near the border with Laos. After strict limits were placed on the world's ...
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 ...
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