Bat guano has been sculpting caves in Brazil for hundreds of years

Iron ore caves the place bats roost in Brazil have turn into a lot bigger than caves with out bats – as a result of weathering impact of hundreds of years of guano.

The iron-rich earth beneath the Carajás Nationwide Forest within the Brazilian Amazon hosts greater than 1500 caves, solely 10 of which at present home bats or used to.

Most different cave-dwellers – equivalent to micro organism, fungi and invertebrates like beetles and scorpions – don’t depart their underground haunts. However bats …