Estimates say as many as a million bats may hibernate inside the Millie Mine shaft. Here's when you can see them take flight.

Cadomin Cave is Alberta’s largest known bat hibernaculum. The cave, among the largest in the Canadian Rockies, is a critical ...

Inside the gaping mouth of Mammoth Cave, hibernating bats sleep in permanent twilight, each huddled in its own limestone crevice. Every fall, these big brown bats (Eptesicus fuscus) squeeze their ...

Shelly Colatskie, a bat ecologist for the Missouri Department of Conservation, identified the flying mammal in Manzo’s room as a big brown bat. “They’re harmless to humans,” Colatskie said.

Fran Brown, Syracuse’s head coach, made an adamant defense for his former starting quarterback to be a first-rounder. When ...

Next, he had to get the darned things to sit still. After collecting dozens of big brown bats from a series of filthy Bethesda attics, he began training them to sit patiently on a platform while ...

Millie Mine, located in Iron Mountain, Michigan, is home to one of the largest bat colonies in North America. Little brown bats and big brown bats, both insectivores, inhabit the mine, with the ...