European cave-dwelling aquatic salamander with permanent external gills.

长有永久性外部鳃的欧洲穴居水栖蝾螈。

youdao

Because a new study shows that cave-dwelling fish spend more time awake than their counterparts at the sunny surface.

最新研究显示相比生活在阳光下的鱼类来说，洞穴鱼类保持清醒的时间更长。 这项成果发表在《当代生物学》上。

youdao

Dairy, grains, beans and all other foodstuffs unavailable in cave-dwelling days are verboten. So are foods with added hormones and artificial additives like processed sugars.

至于在穴居时代还未出现的奶制品、谷物、豆类等食物便是不许吃的，同样排除在外的还有含激素的食物以及如精制糖这样的人工添加物。

youdao

For all the military's new gadgets, though, defense experts say that finding cave-dwelling terrorists will require some low technology.

FORBES: We See You