Park Service rangers explain that mother bats find their babies by remembering their location, their smell and the sound of their cry.

VOA: special.2009.12.07

Finally,in late October or early November, the bats all leave and return to Mexico.

VOA: special.2009.12.07

Then I began investigating. I worked my way through the rocks and brush until I found myself gazing into the biggest and blackest hole I had ever seen, out of which the bats seemed literally to boil .

VOA: special.2009.12.07

Here is a reading of his description of his first sight of the bats and the big cave: "I thought it was a volcano, but then,I'd never seen a volcano nor never before had I seen bats swarm, for that matter.

VOA: special.2009.12.07

One politician sparked outrage when he suggested that residents kill the hated toads with cricket bats and golf clubs.

VOA: standard.2010.02.07