Unusually small burrows, i.e., tiny tubes that run through the rock in a parallel arrangement from top to bottom, were discovered in marble and limestone of these desert regions. The paper is ...

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

Put simply, limestone is a type of rock that is formed by organisms ... on the ins and outs of these two materials. Read more: 50 Small Backyard Landscaping Ideas That Will Transform Your Space ...

NPCA shares the latest archaeological discovery at Mammoth Cave National Park, which has a pretty fascinating human history, too.

Mysterious micro-burrows in desert marble and limestone were probably made by microbes that lived millions of years ago. Exactly what kind of microbes bored into the rock remains unknown ...

Glacial Till A slightly smaller "ball" of till was shaped by its journey down the stream bed, during which time it became armored by picking up several small rocks. Rocks Along the Stream Bed ...

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

The parking area has been kept small to limit the number of people ... Pets, drones, alcohol and the collection of plants, animals, limestone rocks and other natural resources are prohibited.

Unusually small burrows, i.e., tiny tubes that run through the rock in a parallel arrangement from top to bottom, were discovered in marble and limestone of these desert regions. The paper is ...