Our bodies start out symmetrical, the left side a perfect reflection of the right. Visible signs of left-right asymmetry in the human body are apparent around six weeks.
Our bodies start out symmetrical, the left side a perfect reflection of the right. Visible signs of left-right asymmetry in the human body are apparent around six weeks.
Our bodies start out symmetrical, the left side a perfect reflection of the right. Visible signs of left-right asymmetry in the human body are apparent around six weeks.