And so therefore, if you look at the same region of a genome in many mammals that have been evolutionarily distant from each other and are also ecologically divergent, you will get a better understanding of what the evolutionary prior of that site is, i.e., if it is important for the mammal to function, for its survival, it will be the same in all of those different lineages, species, taxa.
因此，如果你去看看很多哺乳动物 基因组的同一位置 他们已经进化到很不一样， 生态上也很不一样，你就能更好地 理解哪一部分会优先进化， 所以如果对哺乳动物的生存很重要的部分 那么，对其他 一切不同的血统，物种，类群也一样重要。