现在想一想,为什么人其他地方没什么毛只有脑袋上有头发,可能就是为了要保暖啊!人的生理机制就要求你脑袋要暖暖的才好活下去!
QOTO: Question Others to Teach Ourselves An inclusive, Academic Freedom, instance All cultures welcome. Hate speech and harassment strictly forbidden.