But researchers observed some zebrafish cells switched to different new types – as indicated by the change in what genes were active—after they should have been well committed to a certain fate.

但研究人员观察到，一些斑马鱼细胞在本应很好地适应某种命运之后，转变为不同的新类型——正如活跃基因的变化所表明的那样。