亲种 meaning in English

chikatane

By careful training, english race-horses have come to surpass the parent arabsin fleetness and size .
经过严格训练，英国赛跑马的速率和体格已经超过某亲种阿拉伯马。
If a variety were to flourish so as to exceed in numbers the parent species, it would then rank as the species .
如果一个变种的繁殖，超过它的亲种数量，它就会被列为物种。
I cannot doubt that if other animals and plants , equal in number to our domesticated productions , and belonging to equally diverse classes and countries , were taken from a state of nature , and could be made to breed for an equal number of generations under domestication , they would on an average vary as largely as the parent species of our existing domesticated productions have varied
我不能怀疑，若从自然状况中取来一些动物和植物，其数目、产地及分类纲目都相当于我们的家养生物，同时假定它们在家状况下繁殖同样多的世代，那么它们平均发生的变异要会像现存家养生物的亲种所曾经发生的变异那样大。