The Role of Aggressiveness in Reproduction

A male should have a very strong incentive to keep an eye on the female and make sure she is sexually faithful. Otherwise, he might end up bringing up some other males offspring which would be evolutionary disaster for his genes. The higher you are in the hierarchy, the more attractive you are to females. If they're looking for high caliber males who can also put resources into their offspring. Some might say if men are more aggressive by nature, perhaps more ambitious by nature, that offers one explanation for why there are more male chief executives in business than women.