Bats Exit Caves Before Seismic Events
Bats fly out from caves in unusual numbers before seismic activity. Witnesses in Haiti reported bats pouring out of caves at dusk before the devastating 2010 earthquake. Their sophisticated echolocation system potentially detects air pressure changes or structural shifts in cave formations. This mass-exodus behavior has saved many bat colonies from cave collapses throughout evolutionary history. Miners historically watched bat behavior as a crude but effective warning system for potential cave-ins.