tempo of evolution

例句：

1. 1. The rate of evolution in this species is quite rapid.
   这种物种的进化速度相当快。
2. 2. The pace of evolution has been accelerating over the past century.
   过去一个世纪，进化的步伐一直在加快。
3. 3. The study of evolution is a crucial part of understanding the natural world.
   研究进化是理解自然世界的重要部分。