Accordingly, we began to ask what role melanin might play in human evolution.
Accordingly, we began to ask what role melanin might play in human evolution.
于是，我们开始追问：黑色素究竟在人类演化史上扮演了什麽角色？
Accordingly, we began to ask what role melanin might play in human evolution.
于是，我们开始追问：黑色素究竟在人类演化史上扮演了什麽角色？