During periods of lower sea level, when caves were dry, stalagmites and stalactites ... geologic structure of the inland blue holes—deep, dark, sheltered, with little tidal flow—specialized ...

The deep ocean is a vast reservoir of biodiversity that harbors unique species, communities, and ecosystems,” write the authors of a new study. We tend to think of the deep ocean as cold, dark, and ...

I slip under the ferns and into the cave — it feels a little like being in a Hawaii lava tube — and venture to the back, which is far but not too far. It’s damp and dark inside, and the ...

Dark Star’s passages are deep underground, yet many are 10,000 feet above sea level. The thin air at that altitude ups the physical challenge of negotiating the cave. Two days later I am at the ...

There are caves all over the planet, but only a few have been explored. These dark spaces are sheltered from the weather ... However, what is really interesting is there aren't any blind fish in the ...