For most organisms on Earth, rocks are objects, not food. But for one oddball microbe, desert limestone seems to have been on ...

Unusual structures of unknown origin discovered in desert rocks have been documented in a new study. In the desert regions of ...

Scientists recently identified peculiar micro-burrows in marble and limestone formations ... "When analyzing samples of the affected rocks, we found remnants of biological material.

During subsequent sample investigations, evidence of biological material was found. Evidently, microorganisms had perforated the rock ... Saudi Arabia—in Oman in limestone, while in the ...