From prehistoric sharks to unusual flowers: What’s inside the world’s largest cave

Mammoth Cave National Park, home to the world’s longest known cave system, stretches for more than 680 kilometres, and ...
Times Union

The world's largest underwater cave has been discovered — and may hold ancient Mayan secrets

Divers in Mexico's Yucatan Peninsula say they have discovered the world's largest underwater cave. Underwater archaeologists discovered last week that the cave system known as Sac Actun, located near ...
Yahoo

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

Add Yahoo as a preferred source to see more of our stories on Google. Photo Credit: iStock A cave once known only to hunters and explorers is now helping to stabilize livelihoods for communities in ...
AOL

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 ...