Human beings seem intent on visiting the least inviting corners of the Earth – even the deepest, darkest recesses of cave networks that have remained virtually untouched for thousands of years.

the second deepest cave in North America. He’s the president of the Cave Conservancy of Hawaii, a nonprofit trust that has been buying up land in and around Ocean View to preserve the tunnels ...

They appeared in North America from Eurasia between 300,000 ... said they were unsure how the fox ended up so deep inside the cave. "Perhaps the most common question is how the red fox got nearly ...