If movies were trying to be more realistic, perhaps the way to summon Batman shouldn't have been the Bat-Signal — it should have been the bat squeak. New research from the Bat Lab for Neuro-Ecology at ...

KELLY: Bats flying out of their caves by the thousands, sometimes tens of thousands. Across the world, it happens every night. And for the bats, you might think it was a nightmare, too - a traffic ...