Women are often sexually drawn to the alpha male of a group, whose role may in part be determined by his size. On a primal level, women may be more drawn to tall, powerful men because these males are more likely to provide protection and resources. To a degree, a man's size still impacts how successful he is with women in a modern setting. Consider how few women will date a man who's shorter than her. As a consequence, taller males has a larger pool of potential mates.

A new study has found that this size advantage, in terms of sexual preference, begins at birth. The faster a male infant grows in the first half year of life, the more sex he's