An unusual pattern of tiny rock tunnels, first found in Namibia's desert roughly 15 years ago, could be the work of an ...

Bacteria, fungi and lichens have shown that they can survive extreme conditions, and some of them are endolithic, meaning they live inside rocks. Passchier wanted to see if the organisms that ...

Their colours range from green to brown to white to russet red. Even in these colours, lichens can be understated additions to tree trunks and rocks, and you might miss them at first glance. There are ...

The frogs' coloration and markings vary with their specific habitat, but they usually have a brownish-green body with rust-colored blotches that match the lichen-covered rocks lining the creeks ...

Botany Canyon is a narrow and deep canyon that will make you feel like you've left the rock outcroppings and pine trees of ...