So for instance, by measuring the genome, we've learned a lot about how we're related to other kinds of animals by the closeness of our genome, or how we're related to each other -- the family tree, or the tree of life.
举个例子，就靠着测量基因， 我们已经深入理解了我们是怎么和其他动物同源的， 就靠看我们和他们基因组间的相似性， 或者我们人类之间是怎么相联系的——家谱之类的， 或者是生物进化树。