New methods developed in genetic research have led taxonomists to revise their views on the evolutionary relationships between many species.
遗传研究中出现的新方法使分类学家修正了他们对许多物种间进化关系的看法。
2
Darwin's original thesis, and the viewpoint supported by evolutionary gradualists, is that species change continuously but slowly and in small increments.
达尔文最初的论点以及进化渐进主义者所支持的观点是，物种的变化是持续的，但非常缓慢，增量也很小。
3
Following each mass extinction, there is a sudden evolutionary burst as new species develop to fill the ecological niches opened by the event.