Going to roost: Chen Ti-wen, a zoologist at Taiwan University who is researching bats, says that the reason why bats live in cave colonies could be that the small number of caves makes it impossible to have individual roosts; there can also be mutual protection within a colony from snakes, eagles and other predators.
蝠去樓空研究蝙蝠棲息地的台大動物系研究生陳怡文表示，蝙蝠群居洞穴的理由，可能是洞穴數量較少，不允許個個自立門戶；群居也可互相警戒，提防蛇、老鷹等天敵的偷襲。