Mysterious tunnels in desert rocks may be the work of unknown microbes, hinting at a hidden world inside marble and limestone ...

In places where the limestone was weak ... which is common for creatures that live in the dark. And Dai Inh Vu, a botanist from the Vietnam Academy of Science and Technology, has identified ...

We just stumbled upon a massive limestone mine, but what we found inside was even more shocking—a hidden cave deep within the tunnels. As we descend into the dark, sketchy mineshaft, we navigate ...

"Trees are a good thing in a lot of habitats, but in some areas of limestone pavements, the canopy has just become too dense, and it gets too dark and we're losing a lot of species," she said.