Bat Volcano Erupts at Night
Clip: Season 39 Episode 13 | 1m 56s | Video has closed captioning.
More than three million bats live in the caves of Calakmul. To avoid being eaten by predators, they form a living tornado, or "bat volcano," when they fly. In this whirling mass, it’s almost impossible for their predators to choose a target.
Problems Playing Video? | Closed Captioning