But this is the story of the few... 但是本集将讲述少数…
But their early rise was not to last, 但它们的早期崛起并不会持续太久
But Pangaea didn't just belong to them. 但是盘♥古♥大♥陆♥并不只属于它们
But frogs are nothing if not persistent. 但青蛙生性坚持不懈
But marsh frogs have evolved some quirky adaptations of their own. 但是湖侧褶蛙也进化出了 一些奇特的适应性