Serotine bats that have penises seven times longer and wider than their female counterparts' vaginas are the first known mammals to engage in non-penetrative sex.
The bat skeletons unearthed in southwest Wyoming are the oldest ever found, and their discovery has sparked a reshuffle in the bat family tree.
Bats vibrate special vocal folds to produce low-pitched growls like those of death metal singers.
Conservationists are using bats' echolocation abilities to help track these mammals, as many of them succumb to white nose syndrome.
Scientists recently documented never-before-seen mating behavior in wrinkle-faced bats, in which males pull a furry flap of skin over their faces.
Bats carry a lot of viruses, some of which make people sick. So why don't bats get sick from these pathogens?
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