At this point the subpopulations have evolved into distinctspecies.
这时，亚种群已经进化成不同的物种。
2
This is closer to biology, especially with speciation, how two distinctspecies form from one.
它更接近生物，尤其是物种的形成，也就是一个物种如何形成两个截然不同的物种。
3
After the islands separated, the isolated lizard populations would have become distinctspecies while also retaining their ancestors' niche adaptations.