A mission to remove potential explosives from a remote area of Carlsbad Caverns National Park revealed the cave system’s legacy of guano mining. The National Park Service reported it removed six boxes ...

Iron ore caves where bats roost in Brazil have become much larger than caves without bats – due to the weathering effect of thousands of years of guano. The iron-rich earth beneath the Carajás ...

CARLSBAD, N.M. (KRQE) –Guano. If you look into the history of Carlsbad Caverns, you will most likely come across this term. In fact, some of the early visitors to the large underground cave system ...

Bat poop—yes, bat poop—is far more fascinating than you might think. You probably don’t give it much thought (unless it’s in your attic), but believe it or not, bat droppings have shaped history, ...

The guano in question was collected from Cripps Mill Cave in Tennessee, a limestone cave home to gray bats and Indiana bats. Bat guano — a.k.a., droppings — preserves evidence of past fires, a recent ...