传统观点认为雌性哺乳动物在出生时卵母细胞池中存在一定数目的卵母细胞，出生后不会进行卵母细胞的更新。
In traditional view, in neonatal females of most mammalian, oocyte pool with a finite number of oocytes is set, and the pool will not self-renew afterbirth.
在这种情况中，人类遵循哺乳动物中普遍存在的一种模式：雄性敌视雌性与其前配偶所生的子女。
In this, humans follow a pattern that is widespread in mammals: male hostility to a female's offspring from previous matings.
在哺乳动物中，每一个雌性细胞有两条X染色体，而每一个雄性细胞有一条X染色体。
In mammals, every cell in females has two X-chromosomes, while every cell in males has a single X-chromosome.
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