Dogs were the earliest pets to be raised by man. Sung Yung-i theorizes that the reason dogs submit their wills to their owner is that they view humans as being of the same kind; moreover, they view their owner as an elder.
狗是最早被人類豢養的家畜，宋永義分析，狗之所以聽命於主人，是狗把人類視為同類，並且把主人當「老大」看待。