The sound of cicadas humming gives way to high-pitched squeaking. ... The storm tunnel, dubbed the “Phoenix Bat Cave” on Google Maps, runs alongside the Arizona Canal near North 37th Place.

GOLDSHTEIN: Twenty-five bats a second emerge from the cave. CHANG: But unlike our human highways, collisions are rare. KELLY: Well, Goldshtein and her team wanted to know why.

Cadomin Cave is Alberta’s largest known bat hibernaculum. The cave, among the largest in the Canadian Rockies, is a critical hibernation site for hundreds of bats — three species use the cave ...

The Phoenix bat cave offers a summertime home for Mexican free-tailed bats and a nightly show for visitors. ... The sound of cicadas humming gives way to high-pitched squeaking.