But one group of animals has found a way to survive here. 但有一群动物 找到了在这里生存的方法
another group of animals had also clung on... 但另一群动物也坚持了下来
social animals like ants and termites 像蚂蚁和白蚁这样的社会性动物
This is the only example of animals, 使用药物来挽救其他个体的生命
But even they couldn't compare with the greatest social animals of their age, 但即使是它们也无法 与当时最伟大的社会性动物相比
animals that were evolving just beneath their feet. 这些动物正在它们脚下进化
...the biggest animals to ever walk the Earth are on the rise. 地球上有史以来最大的动物正在崛起
and one group of animals in particular. 对于一群动物 尤为如此