先民

以動物命名人的屬相，是因為我們的先民與這些動物有密切關係。

yǐ dòngwù mìngmíng rén de shǔxiàng shì yīnwèi wǒmen de xiānmín yǔ zhèxiē dòngwù yǒu mìqiè guānxi

Our ancestors used animals to name the years of people's births as their lives were closely connected to these animals.