They have evolved a whole swathe of game-changing adaptations. 它们进化出了 一系列极为重要的适应性
there rose from the ashes a life-form that had previously only survived 一种此前只在边缘地带幸存的生物
This female is already closely guarded by a male, 这只雌巨角犀 已经被一只雄巨角犀严密地守护着
especially when it comes to finding a mate. 尤其是在寻找配偶时
it became a harsher, more difficult place to live. 它成为了 一个更恶劣、更难以生存的地方
The climate was switching into a new, colder state. 气候正在转入一个新的更寒冷的状态